bloritsch 02/01/22 05:58:20
Modified: src/org/apache/jmeter/util JMeterUtils.java
Log:
fix XML parser instantiation isues
Revision Changes Path
1.21 +864 -842 jakarta-jmeter/src/org/apache/jmeter/util/JMeterUtils.java
Index: JMeterUtils.java
===================================================================
RCS file: /home/cvs/jakarta-jmeter/src/org/apache/jmeter/util/JMeterUtils.java,v
retrieving revision 1.20
retrieving revision 1.21
diff -u -r1.20 -r1.21
--- JMeterUtils.java 23 Dec 2001 04:36:19 -0000 1.20
+++ JMeterUtils.java 22 Jan 2002 13:58:20 -0000 1.21
@@ -67,6 +67,8 @@
import org.xml.sax.*;
import org.apache.jmeter.gui.util.ComponentUtil;
import org.apache.jmeter.gui.GuiPackage;
+import javax.xml.parsers.SAXParserFactory;
+import javax.xml.parsers.SAXParser;
/**
@@ -74,852 +76,872 @@
*
*@author <a href="mailto:[EMAIL PROTECTED]";>Stefano Mazzocchi</a>
*@created June 28, 2001
- *@version $Revision: 1.20 $ $Date: 2001/12/23 04:36:19 $
+ *@version $Revision: 1.21 $ $Date: 2002/01/22 13:58:20 $
*/
public class JMeterUtils
{
+ private static final SAXParserFactory xmlFactory;
-
- private static Properties appProperties;
- public static ResourceBundle RESOURCES =
ResourceBundle.getBundle("org.apache.jmeter.resources.messages");
-
-
- /**
- * This method is used by the init method to load the property file that may
- * even reside in the user space, or in the classpath under
- * org.apache.jmeter.jmeter.properties
- *
- *@param file Description of Parameter
- *@return The Properties value
- */
- public static Properties getProperties(String file)
- {
- Properties p = new Properties(System.getProperties());
- try
- {
- File f = new File(file);
- p.load(new FileInputStream(f));
- }
- catch (Exception e)
- {
- try
- {
-
p.load(JMeterUtils.class.getClassLoader().getSystemResourceAsStream("org/apache/jmeter/jmeter.properties"));
- }
- catch (IOException ex)
- {
- //JMeter.fail("Could not read internal resource.
Archive is broken.");
- }
- }
- appProperties = p;
- return p;
- }
-
- /**
- * Gets the resource string for this key.
- * @param key the key in the resource file
- * @return the resource string if the key is found; otherwise, return an
empty string
- */
- public static String getResString(String key)
- {
- String resString = null;
-
- try
- {
- resString = RESOURCES.getString(key);
- }
- catch (MissingResourceException mre)
- {
- System.out.println("ERROR! Resource string not found: [" + key
+ "]");
- resString = "";
- }
-
- return resString;
- }
-
- /**
- * This gets the currently defined appProperties. It can only be called after
- * the getProperties(String file) method is called.
- *
- *@return The JMeterProperties value
- */
- public static Properties getJMeterProperties()
- {
- return appProperties;
- }
-
- /**
- * This looks for the requested image in the classpath under
- * org.apache.jmeter.images. <name>
- *
- *@param name Description of Parameter
- *@return The Image value
- */
- public static ImageIcon getImage(String name)
- {
- try
- {
- return new
ImageIcon(JMeterUtils.class.getClassLoader().getResource(
- "org/apache/jmeter/images/" +
name.trim()));
- }
- catch(NullPointerException e)
- {
- System.out.println(name);
- return null;
- }
- }
-
- /**
- * Creates the vector of Timers plugins.
- *
- *@param properties Description of Parameter
- *@return The Timers value
- */
- public static Vector getTimers(Properties properties)
- {
- return instantiate(getVector(properties, "timer."),
"org.apache.jmeter.timers.Timer");
- }
-
- /**
- * Creates the vector of visualizer plugins.
- *
- *@param properties Description of Parameter
- *@return The Visualizers value
- */
- public static Vector getVisualizers(Properties properties)
- {
- return instantiate(getVector(properties, "visualizer."),
- "org.apache.jmeter.visualizers.Visualizer");
- }
-
- /**
- * Creates a vector of SampleController plugins.
- *
- *@param properties The properties with information about the samplers
- *@return The Controllers value
- */
- public static Vector getControllers(Properties properties)
- {
- String name = "controller.";
- Vector v = new Vector();
- Enumeration names = properties.keys();
- while (names.hasMoreElements())
- {
- String prop = (String) names.nextElement();
- if (prop.startsWith(name))
- {
- Object o = instantiate(properties.getProperty(prop),
-
"org.apache.jmeter.control.SamplerController");
- v.addElement(o);
- }
- }
- return v;
- }
-
- /**
- * Create a string of class names for a particular SamplerController
- *
- *@param properties The properties with info about the samples.
- *@param name The name of the sampler controller.
- *@return The TestSamples value
- */
- public static String[] getTestSamples(Properties properties, String name)
- {
- return (String[]) getVector(properties, name +
".testsample").toArray(new String[0]);
- }
-
- /**
- * Create an instance of an org.xml.sax.Parser
- *
- *@param properties The properties file containing the parser's class name
- *@return The XMLParser value
- */
- public static XMLReader getXMLParser(Properties properties)
- {
- return (XMLReader)
instantiate(getPropDefault("xml.parser","org.xml.sax.Parser"),
- "org.xml.sax.Parser");
- }
-
- /**
- * Create an instance of an org.xml.sax.Parser based on the default props.
- *
- *@return The XMLParser value
- */
- public static XMLReader getXMLParser()
- {
- return getXMLParser(getJMeterProperties());
- }
-
- /**
- * Creates the vector of alias strings.
- *
- *@param properties Description of Parameter
- *@return The Alias value
- */
- public static Hashtable getAlias(Properties properties)
- {
- return getHashtable(properties, "alias.");
- }
-
- /**
- * Creates a vector of strings for all the properties that start with a common
- * prefix.
- *
- *@param properties Description of Parameter
- *@param name Description of Parameter
- *@return The Vector value
- */
- public static Vector getVector(Properties properties, String name)
- {
- Vector v = new Vector();
- Enumeration names = properties.keys();
- while (names.hasMoreElements())
- {
- String prop = (String) names.nextElement();
- if (prop.startsWith(name))
- {
- v.addElement(properties.getProperty(prop));
- }
- }
- return v;
- }
-
- /**
- * Creates a vector of strings for all the properties that start with a common
- * prefix.
- *
- *@param properties Description of Parameter
- *@param name Description of Parameter
- *@return The Hashtable value
- */
- public static Hashtable getHashtable(Properties properties, String name)
- {
- Hashtable t = new Hashtable();
- Enumeration names = properties.keys();
- while (names.hasMoreElements())
- {
- String prop = (String) names.nextElement();
- if (prop.startsWith(name))
- {
- t.put(prop.substring(name.length()),
properties.getProperty(prop));
- }
- }
- return t;
- }
-
- /**
- * Get a int value with default if not present.
- *
- *@param propName the name of the property.
- *@param defaultVal the default value.
- *@return The PropDefault value
- */
- public static int getPropDefault(String propName, int defaultVal)
- {
- int ans;
- try
- {
- ans = (Integer.valueOf(
- appProperties.getProperty(propName,
Integer.toString(defaultVal)).trim())).intValue();
- }
- catch (Exception e)
- {
- ans = defaultVal;
- }
- return ans;
- }
-
- /**
- * Get a boolean value with default if not present.
- *
- *@param propName the name of the property.
- *@param defaultVal the default value.
- *@return The PropDefault value
- */
- public static boolean getPropDefault(String propName, boolean defaultVal)
- {
- boolean ans;
- try
- {
- String strVal = appProperties.getProperty(propName,
- (new Boolean(defaultVal)).toString()).trim();
- if (strVal.equalsIgnoreCase("true") ||
strVal.equalsIgnoreCase("t"))
- {
- ans = true;
- }
- else if (strVal.equalsIgnoreCase("false") ||
strVal.equalsIgnoreCase("f"))
- {
- ans = false;
- }
- else
- {
- ans = ((Integer.valueOf(strVal)).intValue() == 1);
- }
- }
- catch (Exception e)
- {
- ans = defaultVal;
- }
- return ans;
- }
-
- /**
- * Get a long value with default if not present.
- *
- *@param propName the name of the property.
- *@param defaultVal the default value.
- *@return The PropDefault value
- */
- public static long getPropDefault(String propName, long defaultVal)
- {
- long ans;
- try
- {
- ans = (Long.valueOf(appProperties.getProperty(propName,
Long.toString(defaultVal)).trim())).longValue();
- }
- catch (Exception e)
- {
- ans = defaultVal;
- }
- return ans;
- }
-
- /**
- * Get a String value with default if not present.
- *
- *@param propName the name of the property.
- *@param defaultVal the default value.
- *@return The PropDefault value
- */
- public static String getPropDefault(String propName, String defaultVal)
- {
- String ans;
- try
- {
- ans = appProperties.getProperty(propName, defaultVal).trim();
- }
- catch (Exception e)
- {
- ans = defaultVal;
- }
- return ans;
- }
-
- /**
- * Sets the selection of the JComboBox to the Object 'name' from the list in
- * namVec.
- *
- *@param properties Description of Parameter
- *@param combo Description of Parameter
- *@param namVec Description of Parameter
- *@param name Description of Parameter
- */
-
- public static void selJComboBoxItem(Properties properties, JComboBox combo,
Vector namVec, String name)
- {
-
- int idx = namVec.indexOf(name);
-
-
- combo.setSelectedIndex(idx);
-
-
- // Redisplay.
-
- combo.updateUI();
-
- return;
- }
-
-
- /**
- * Instatiate an object and guarantee its class.
- *
- *@param className The name of the class to instantiate.
- *@param impls The name of the class it subclases.
- *@return Description of the Returned Value
- */
-
- public static Object instantiate(String className, String impls)
- {
-
- try
- {
-
- Class c = Class.forName(impls);
-
-
- try
- {
-
- Class o = Class.forName(className);
-
-
- Object res = o.newInstance();
-
- if (c.isInstance(res))
- {
-
- return res;
- }
-
- else
- {
-
- throw new IllegalArgumentException
- (className + " is not an
instance of " + impls);
- }
-
- }
-
- catch (ClassNotFoundException e)
- {
-
- System.err.println("Error loading class " +
- className + ": class is not found");
-
- }
-
- catch (IllegalAccessException e)
- {
-
- System.err.println("Error loading class " + className +
- ": does not have access");
-
- }
-
- catch (InstantiationException e)
- {
-
- System.err.println("Error loading class " + className +
- ": could not instantiate");
-
- }
-
- catch (NoClassDefFoundError e)
- {
-
- System.err.println("Error loading class " + className +
- ": couldn't find class " +
e.getMessage());
-
- }
-
- }
-
- catch (ClassNotFoundException e)
- {
-
- System.err.println("Error loading class " + impls +
- ": was not found.");
-
- }
-
- return null;
- }
-
-
- /**
- * Instantiate a vector of classes
- *
- *@param v Description of Parameter
- *@param className Description of Parameter
- *@return Description of the Returned Value
- */
-
- public static Vector instantiate(Vector v, String className)
- {
-
- Vector i = new Vector();
-
-
- try
- {
-
- Class c = Class.forName(className);
-
- Enumeration elements = v.elements();
-
- while (elements.hasMoreElements())
- {
-
- String name = (String) elements.nextElement();
-
- try
- {
-
- Object o = Class.forName(name).newInstance();
-
- if (c.isInstance(o))
- {
-
- i.addElement(o);
-
- }
-
- }
-
- catch (ClassNotFoundException e)
- {
-
- System.err.println("Error loading class " +
- name + ": class is not found");
-
- }
-
- catch (IllegalAccessException e)
- {
-
- System.err.println("Error loading class " +
name + ": does not have access");
-
- }
-
- catch (InstantiationException e)
- {
-
- System.err.println("Error loading class " +
name + ": could not instantiate");
-
- }
-
- catch (NoClassDefFoundError e)
- {
-
- System.err.println("Error loading class " +
name + ": couldn't find class " + e.getMessage());
-
- }
-
-
- }
-
- }
- catch (ClassNotFoundException e)
- {
-
- System.err.println("Error loading class " + className + ":
class is not found");
-
- }
-
-
- return i;
- }
-
-
- /**
- * Tokenize a string into a vector of tokens
- *
- *@param string Description of Parameter
- *@param separator Description of Parameter
- *@return Description of the Returned Value
- */
-
- public static Vector tokenize(String string, String separator)
- {
-
- Vector v = new Vector();
-
- StringTokenizer s = new StringTokenizer(string, separator);
-
- while (s.hasMoreTokens())
- {
-
- v.addElement(s.nextToken());
-
- }
-
- return v;
- }
-
-
- /**
- * Create a button with the netscape style
- *
- *@param name Description of Parameter
- *@param listener Description of Parameter
- *@return Description of the Returned Value
- */
-
- public static JButton createButton(String name, ActionListener listener)
- {
-
- JButton button = new JButton(getImage(name + ".on.gif"));
-
- button.setDisabledIcon(getImage(name + ".off.gif"));
-
- button.setRolloverIcon(getImage(name + ".over.gif"));
-
- button.setPressedIcon(getImage(name + ".down.gif"));
-
- button.setActionCommand(name);
-
- button.addActionListener(listener);
-
- button.setRolloverEnabled(true);
-
- button.setFocusPainted(false);
-
- button.setBorderPainted(false);
-
- button.setOpaque(false);
-
- button.setPreferredSize(new Dimension(24, 24));
-
- return button;
- }
-
-
- /**
- * Create a button with the netscape style
- *
- *@param name Description of Parameter
- *@param listener Description of Parameter
- *@return Description of the Returned Value
- */
-
- public static JButton createSimpleButton(String name, ActionListener listener)
- {
-
- JButton button = new JButton(getImage(name + ".gif"));
-
- button.setActionCommand(name);
-
- button.addActionListener(listener);
-
- button.setFocusPainted(false);
-
- button.setBorderPainted(false);
-
- button.setOpaque(false);
-
- button.setPreferredSize(new Dimension(25, 25));
-
- return button;
- }
-
-
- /**
- * Takes a String and a tokenizer character, and returns a new array of
- * strings of the string split by the tokenizer character.
- *
- *@param splittee String to be split
- *@param splitChar Character to split the string on
- *@return Array of all the tokens.
- */
-
- public static String[] split(String splittee, String splitChar)
- {
- if (splittee == null || splitChar == null)
- {
- return new String[0];
- }
- StringTokenizer tokens;
- String temp;
- int spot;
- while ((spot = splittee.indexOf(splitChar + splitChar)) != -1)
- {
- splittee = splittee.substring(0, spot + splitChar.length()) +
- splittee.substring(spot + 2 *
splitChar.length(),
- splittee.length());
- }
- Vector returns = new Vector();
- int start = 0;
- int length = splittee.length();
- spot = 0;
- while (start < length && (spot = splittee.indexOf(splitChar, start)) >
-1)
- {
- if (spot > 0)
- {
- returns.addElement(splittee.substring(start, spot));
- }
- start = spot + splitChar.length();
- }
- if (start < length)
- {
- returns.add(splittee.substring(start));
- }
- String[] values = new String[returns.size()];
- returns.copyInto(values);
- return values;
- }
- // End Method
-
-
- /**
- * Takes a String and a tokenizer character, and returns a new array of
- * strings of the string split by the tokenizer character.
- *
- *@param splittee String to be split
- *@param splitChar Character to split the string on
- *@param def Default value to place between two split chars that have
- * nothing between them
- *@return Array of all the tokens.
- */
-
- public static String[] split(String splittee, String splitChar, String def)
- {
- if (splittee == null || splitChar == null)
- {
- return new String[0];
- }
- StringTokenizer tokens;
- String temp;
- int spot;
- while ((spot = splittee.indexOf(splitChar + splitChar)) != -1)
- {
- splittee = splittee.substring(0, spot + splitChar.length()) +
def +
- splittee.substring(spot + 1 *
splitChar.length(),
- splittee.length());
- }
- Vector returns = new Vector();
- int start = 0;
- int length = splittee.length();
- spot = 0;
- while (start < length && (spot = splittee.indexOf(splitChar, start)) >
-1)
- {
- if (spot > 0)
- {
- returns.addElement(splittee.substring(start, spot));
- }
- start = spot + splitChar.length();
- }
- if (start < length)
- {
- returns.add(splittee.substring(start));
- }
- String[] values = new String[returns.size()];
- returns.copyInto(values);
- return values;
- }
-
- /**
- * Report an error through a dialog box.
- *
- *@param errorMsg the error message.
- */
- public static void reportErrorToUser(String errorMsg)
- {
- JOptionPane.showMessageDialog(GuiPackage.getInstance().getMainFrame(),
- errorMsg,"Error",JOptionPane.ERROR_MESSAGE);
- }
-
- /**
- * Finds a string in an array of strings and returns the
- *
- *@param array Array of strings.
- *@param value String to compare to array values.
- *@return Index of value in array, or -1 if not in array.
- */
-
- public static int findInArray(String[] array, String value)
- {
- int count = -1;
- int index = -1;
- if (array != null && value != null)
- {
- while (++count < array.length)
- {
- if (array[count] != null && array[count].equals(value))
- {
- index = count;
- break;
- }
- }
- }
- return index;
- }
-
-
- /**
- * Takes an array of strings and a tokenizer character, and returns a string
- * of all the strings concatenated with the tokenizer string in between each
- * one.
- *
- *@param splittee Array of Objects to be concatenated.
- *@param splitChar Object to unsplit the strings with.
- *@return Array of all the tokens.
- */
-
- public static String unsplit(Object[] splittee, Object splitChar)
- {
-
- StringBuffer retVal = new StringBuffer("");
-
- int count = -1;
-
- while (++count < splittee.length)
- {
-
- if (splittee[count] != null)
- {
-
- retVal.append(splittee[count]);
- }
-
- if (count + 1 < splittee.length && splittee[count + 1] != null)
- {
-
- retVal.append(splitChar);
- }
-
- }
-
- return retVal.toString();
- }
- // End Method
-
-
- /**
- * Takes an array of strings and a tokenizer character, and returns a string
- * of all the strings concatenated with the tokenizer string in between each
- * one.
- *
- *@param splittee Array of Objects to be concatenated.
- *@param splitChar Object to unsplit the strings with.
- *@param def Default value to replace null values in array.
- *@return Array of all the tokens.
- */
-
- public static String unsplit(Object[] splittee, Object splitChar, String def)
- {
-
- StringBuffer retVal = new StringBuffer("");
-
- int count = -1;
-
- while (++count < splittee.length)
- {
-
- if (splittee[count] != null)
- {
-
- retVal.append(splittee[count]);
- }
-
- else
- {
-
- retVal.append(def);
- }
-
- if (count + 1 < splittee.length)
- {
-
- retVal.append(splitChar);
- }
-
- }
-
- return retVal.toString();
- }
- // End Method
-
-
- /**
- * Gets the JMeter Version.
- * @returns the JMeter version.
- */
- public static String getJMeterVersion()
- {
- return "1.7Beta2";
- }
+ static {
+ SAXParserFactory temp = null;
+ try {
+ temp = SAXParserFactory.newInstance();
+ } catch(Exception e) {
+ temp = null;
+ }
+
+ xmlFactory = temp;
+ }
+
+
+ private static Properties appProperties;
+ public static ResourceBundle RESOURCES =
ResourceBundle.getBundle("org.apache.jmeter.resources.messages");
+
+
+ /**
+ * This method is used by the init method to load the property file that may
+ * even reside in the user space, or in the classpath under
+ * org.apache.jmeter.jmeter.properties
+ *
+ *@param file Description of Parameter
+ *@return The Properties value
+ */
+ public static Properties getProperties(String file)
+ {
+ Properties p = new Properties(System.getProperties());
+ try
+ {
+ File f = new File(file);
+ p.load(new FileInputStream(f));
+ }
+ catch (Exception e)
+ {
+ try
+ {
+
p.load(JMeterUtils.class.getClassLoader().getSystemResourceAsStream("org/apache/jmeter/jmeter.properties"));
+ }
+ catch (IOException ex)
+ {
+ //JMeter.fail("Could not read internal resource. Archive is
broken.");
+ }
+ }
+ appProperties = p;
+ return p;
+ }
+
+ /**
+ * Gets the resource string for this key.
+ * @param key the key in the resource file
+ * @return the resource string if the key is found; otherwise, return an empty
string
+ */
+ public static String getResString(String key)
+ {
+ String resString = null;
+
+ try
+ {
+ resString = RESOURCES.getString(key);
+ }
+ catch (MissingResourceException mre)
+ {
+ System.out.println("ERROR! Resource string not found: [" + key + "]");
+ resString = "";
+ }
+
+ return resString;
+ }
+
+ /**
+ * This gets the currently defined appProperties. It can only be called after
+ * the getProperties(String file) method is called.
+ *
+ *@return The JMeterProperties value
+ */
+ public static Properties getJMeterProperties()
+ {
+ return appProperties;
+ }
+
+ /**
+ * This looks for the requested image in the classpath under
+ * org.apache.jmeter.images. <name>
+ *
+ *@param name Description of Parameter
+ *@return The Image value
+ */
+ public static ImageIcon getImage(String name)
+ {
+ try
+ {
+ return new ImageIcon(JMeterUtils.class.getClassLoader().getResource(
+ "org/apache/jmeter/images/" + name.trim()));
+ }
+ catch(NullPointerException e)
+ {
+ System.out.println(name);
+ return null;
+ }
+ }
+
+ /**
+ * Creates the vector of Timers plugins.
+ *
+ *@param properties Description of Parameter
+ *@return The Timers value
+ */
+ public static Vector getTimers(Properties properties)
+ {
+ return instantiate(getVector(properties, "timer."),
"org.apache.jmeter.timers.Timer");
+ }
+
+ /**
+ * Creates the vector of visualizer plugins.
+ *
+ *@param properties Description of Parameter
+ *@return The Visualizers value
+ */
+ public static Vector getVisualizers(Properties properties)
+ {
+ return instantiate(getVector(properties, "visualizer."),
+ "org.apache.jmeter.visualizers.Visualizer");
+ }
+
+ /**
+ * Creates a vector of SampleController plugins.
+ *
+ *@param properties The properties with information about the samplers
+ *@return The Controllers value
+ */
+ public static Vector getControllers(Properties properties)
+ {
+ String name = "controller.";
+ Vector v = new Vector();
+ Enumeration names = properties.keys();
+ while (names.hasMoreElements())
+ {
+ String prop = (String) names.nextElement();
+ if (prop.startsWith(name))
+ {
+ Object o = instantiate(properties.getProperty(prop),
+ "org.apache.jmeter.control.SamplerController");
+ v.addElement(o);
+ }
+ }
+ return v;
+ }
+
+ /**
+ * Create a string of class names for a particular SamplerController
+ *
+ *@param properties The properties with info about the samples.
+ *@param name The name of the sampler controller.
+ *@return The TestSamples value
+ */
+ public static String[] getTestSamples(Properties properties, String name)
+ {
+ return (String[]) getVector(properties, name + ".testsample").toArray(new
String[0]);
+ }
+
+ /**
+ * Create an instance of an org.xml.sax.Parser
+ *
+ * @deprecated use the plain version instead. We are using JAXP!
+ *@param properties The properties file containing the parser's class name
+ *@return The XMLParser value
+ */
+ public static XMLReader getXMLParser(Properties properties)
+ {
+ return getXMLParser();
+ }
+
+ /**
+ * Create an instance of an org.xml.sax.Parser based on the default props.
+ *
+ *@return The XMLParser value
+ */
+ public static XMLReader getXMLParser()
+ {
+ XMLReader reader = null;
+
+ try {
+ reader = xmlFactory.newSAXParser().getXMLReader();
+ } catch (Exception e) {
+ reader = (XMLReader) instantiate(getPropDefault("xml.parser",
"org.apache.xerces.parsers.SAXParser"), "org.xml.sax.XMLReader");
+ }
+
+ return reader;
+ }
+
+ /**
+ * Creates the vector of alias strings.
+ *
+ *@param properties Description of Parameter
+ *@return The Alias value
+ */
+ public static Hashtable getAlias(Properties properties)
+ {
+ return getHashtable(properties, "alias.");
+ }
+
+ /**
+ * Creates a vector of strings for all the properties that start with a common
+ * prefix.
+ *
+ *@param properties Description of Parameter
+ *@param name Description of Parameter
+ *@return The Vector value
+ */
+ public static Vector getVector(Properties properties, String name)
+ {
+ Vector v = new Vector();
+ Enumeration names = properties.keys();
+ while (names.hasMoreElements())
+ {
+ String prop = (String) names.nextElement();
+ if (prop.startsWith(name))
+ {
+ v.addElement(properties.getProperty(prop));
+ }
+ }
+ return v;
+ }
+
+ /**
+ * Creates a vector of strings for all the properties that start with a common
+ * prefix.
+ *
+ *@param properties Description of Parameter
+ *@param name Description of Parameter
+ *@return The Hashtable value
+ */
+ public static Hashtable getHashtable(Properties properties, String name)
+ {
+ Hashtable t = new Hashtable();
+ Enumeration names = properties.keys();
+ while (names.hasMoreElements())
+ {
+ String prop = (String) names.nextElement();
+ if (prop.startsWith(name))
+ {
+ t.put(prop.substring(name.length()), properties.getProperty(prop));
+ }
+ }
+ return t;
+ }
+
+ /**
+ * Get a int value with default if not present.
+ *
+ *@param propName the name of the property.
+ *@param defaultVal the default value.
+ *@return The PropDefault value
+ */
+ public static int getPropDefault(String propName, int defaultVal)
+ {
+ int ans;
+ try
+ {
+ ans = (Integer.valueOf(
+ appProperties.getProperty(propName,
Integer.toString(defaultVal)).trim())).intValue();
+ }
+ catch (Exception e)
+ {
+ ans = defaultVal;
+ }
+ return ans;
+ }
+
+ /**
+ * Get a boolean value with default if not present.
+ *
+ *@param propName the name of the property.
+ *@param defaultVal the default value.
+ *@return The PropDefault value
+ */
+ public static boolean getPropDefault(String propName, boolean defaultVal)
+ {
+ boolean ans;
+ try
+ {
+ String strVal = appProperties.getProperty(propName,
+ (new Boolean(defaultVal)).toString()).trim();
+ if (strVal.equalsIgnoreCase("true") || strVal.equalsIgnoreCase("t"))
+ {
+ ans = true;
+ }
+ else if (strVal.equalsIgnoreCase("false") ||
strVal.equalsIgnoreCase("f"))
+ {
+ ans = false;
+ }
+ else
+ {
+ ans = ((Integer.valueOf(strVal)).intValue() == 1);
+ }
+ }
+ catch (Exception e)
+ {
+ ans = defaultVal;
+ }
+ return ans;
+ }
+
+ /**
+ * Get a long value with default if not present.
+ *
+ *@param propName the name of the property.
+ *@param defaultVal the default value.
+ *@return The PropDefault value
+ */
+ public static long getPropDefault(String propName, long defaultVal)
+ {
+ long ans;
+ try
+ {
+ ans = (Long.valueOf(appProperties.getProperty(propName,
Long.toString(defaultVal)).trim())).longValue();
+ }
+ catch (Exception e)
+ {
+ ans = defaultVal;
+ }
+ return ans;
+ }
+
+ /**
+ * Get a String value with default if not present.
+ *
+ *@param propName the name of the property.
+ *@param defaultVal the default value.
+ *@return The PropDefault value
+ */
+ public static String getPropDefault(String propName, String defaultVal)
+ {
+ String ans;
+ try
+ {
+ ans = appProperties.getProperty(propName, defaultVal).trim();
+ }
+ catch (Exception e)
+ {
+ ans = defaultVal;
+ }
+ return ans;
+ }
+
+ /**
+ * Sets the selection of the JComboBox to the Object 'name' from the list in
+ * namVec.
+ *
+ *@param properties Description of Parameter
+ *@param combo Description of Parameter
+ *@param namVec Description of Parameter
+ *@param name Description of Parameter
+ */
+
+ public static void selJComboBoxItem(Properties properties, JComboBox combo,
Vector namVec, String name)
+ {
+
+ int idx = namVec.indexOf(name);
+
+
+ combo.setSelectedIndex(idx);
+
+
+ // Redisplay.
+
+ combo.updateUI();
+
+ return;
+ }
+
+
+ /**
+ * Instatiate an object and guarantee its class.
+ *
+ *@param className The name of the class to instantiate.
+ *@param impls The name of the class it subclases.
+ *@return Description of the Returned Value
+ */
+
+ public static Object instantiate(String className, String impls)
+ {
+
+ try
+ {
+
+ Class c = Class.forName(impls);
+
+
+ try
+ {
+
+ Class o = Class.forName(className);
+
+
+ Object res = o.newInstance();
+
+ if (c.isInstance(res))
+ {
+
+ return res;
+ }
+
+ else
+ {
+
+ throw new IllegalArgumentException
+ (className + " is not an instance of " + impls);
+ }
+
+ }
+
+ catch (ClassNotFoundException e)
+ {
+
+ System.err.println("Error loading class " +
+ className + ": class is not found");
+
+ }
+
+ catch (IllegalAccessException e)
+ {
+
+ System.err.println("Error loading class " + className +
+ ": does not have access");
+
+ }
+
+ catch (InstantiationException e)
+ {
+
+ System.err.println("Error loading class " + className +
+ ": could not instantiate");
+
+ }
+
+ catch (NoClassDefFoundError e)
+ {
+
+ System.err.println("Error loading class " + className +
+ ": couldn't find class " + e.getMessage());
+
+ }
+
+ }
+
+ catch (ClassNotFoundException e)
+ {
+
+ System.err.println("Error loading class " + impls +
+ ": was not found.");
+
+ }
+
+ return null;
+ }
+
+
+ /**
+ * Instantiate a vector of classes
+ *
+ *@param v Description of Parameter
+ *@param className Description of Parameter
+ *@return Description of the Returned Value
+ */
+
+ public static Vector instantiate(Vector v, String className)
+ {
+
+ Vector i = new Vector();
+
+
+ try
+ {
+
+ Class c = Class.forName(className);
+
+ Enumeration elements = v.elements();
+
+ while (elements.hasMoreElements())
+ {
+
+ String name = (String) elements.nextElement();
+
+ try
+ {
+
+ Object o = Class.forName(name).newInstance();
+
+ if (c.isInstance(o))
+ {
+
+ i.addElement(o);
+
+ }
+
+ }
+
+ catch (ClassNotFoundException e)
+ {
+
+ System.err.println("Error loading class " +
+ name + ": class is not found");
+
+ }
+
+ catch (IllegalAccessException e)
+ {
+
+ System.err.println("Error loading class " + name + ": does not
have access");
+
+ }
+
+ catch (InstantiationException e)
+ {
+
+ System.err.println("Error loading class " + name + ": could not
instantiate");
+
+ }
+
+ catch (NoClassDefFoundError e)
+ {
+
+ System.err.println("Error loading class " + name + ": couldn't
find class " + e.getMessage());
+
+ }
+
+
+ }
+
+ }
+ catch (ClassNotFoundException e)
+ {
+
+ System.err.println("Error loading class " + className + ": class is not
found");
+
+ }
+
+
+ return i;
+ }
+
+
+ /**
+ * Tokenize a string into a vector of tokens
+ *
+ *@param string Description of Parameter
+ *@param separator Description of Parameter
+ *@return Description of the Returned Value
+ */
+
+ public static Vector tokenize(String string, String separator)
+ {
+
+ Vector v = new Vector();
+
+ StringTokenizer s = new StringTokenizer(string, separator);
+
+ while (s.hasMoreTokens())
+ {
+
+ v.addElement(s.nextToken());
+
+ }
+
+ return v;
+ }
+
+
+ /**
+ * Create a button with the netscape style
+ *
+ *@param name Description of Parameter
+ *@param listener Description of Parameter
+ *@return Description of the Returned Value
+ */
+
+ public static JButton createButton(String name, ActionListener listener)
+ {
+
+ JButton button = new JButton(getImage(name + ".on.gif"));
+
+ button.setDisabledIcon(getImage(name + ".off.gif"));
+
+ button.setRolloverIcon(getImage(name + ".over.gif"));
+
+ button.setPressedIcon(getImage(name + ".down.gif"));
+
+ button.setActionCommand(name);
+
+ button.addActionListener(listener);
+
+ button.setRolloverEnabled(true);
+
+ button.setFocusPainted(false);
+
+ button.setBorderPainted(false);
+
+ button.setOpaque(false);
+
+ button.setPreferredSize(new Dimension(24, 24));
+
+ return button;
+ }
+
+
+ /**
+ * Create a button with the netscape style
+ *
+ *@param name Description of Parameter
+ *@param listener Description of Parameter
+ *@return Description of the Returned Value
+ */
+
+ public static JButton createSimpleButton(String name, ActionListener listener)
+ {
+
+ JButton button = new JButton(getImage(name + ".gif"));
+
+ button.setActionCommand(name);
+
+ button.addActionListener(listener);
+
+ button.setFocusPainted(false);
+
+ button.setBorderPainted(false);
+
+ button.setOpaque(false);
+
+ button.setPreferredSize(new Dimension(25, 25));
+
+ return button;
+ }
+
+
+ /**
+ * Takes a String and a tokenizer character, and returns a new array of
+ * strings of the string split by the tokenizer character.
+ *
+ *@param splittee String to be split
+ *@param splitChar Character to split the string on
+ *@return Array of all the tokens.
+ */
+
+ public static String[] split(String splittee, String splitChar)
+ {
+ if (splittee == null || splitChar == null)
+ {
+ return new String[0];
+ }
+ StringTokenizer tokens;
+ String temp;
+ int spot;
+ while ((spot = splittee.indexOf(splitChar + splitChar)) != -1)
+ {
+ splittee = splittee.substring(0, spot + splitChar.length()) +
+ splittee.substring(spot + 2 * splitChar.length(),
+ splittee.length());
+ }
+ Vector returns = new Vector();
+ int start = 0;
+ int length = splittee.length();
+ spot = 0;
+ while (start < length && (spot = splittee.indexOf(splitChar, start)) > -1)
+ {
+ if (spot > 0)
+ {
+ returns.addElement(splittee.substring(start, spot));
+ }
+ start = spot + splitChar.length();
+ }
+ if (start < length)
+ {
+ returns.add(splittee.substring(start));
+ }
+ String[] values = new String[returns.size()];
+ returns.copyInto(values);
+ return values;
+ }
+ // End Method
+
+
+ /**
+ * Takes a String and a tokenizer character, and returns a new array of
+ * strings of the string split by the tokenizer character.
+ *
+ *@param splittee String to be split
+ *@param splitChar Character to split the string on
+ *@param def Default value to place between two split chars that have
+ * nothing between them
+ *@return Array of all the tokens.
+ */
+
+ public static String[] split(String splittee, String splitChar, String def)
+ {
+ if (splittee == null || splitChar == null)
+ {
+ return new String[0];
+ }
+ StringTokenizer tokens;
+ String temp;
+ int spot;
+ while ((spot = splittee.indexOf(splitChar + splitChar)) != -1)
+ {
+ splittee = splittee.substring(0, spot + splitChar.length()) + def +
+ splittee.substring(spot + 1 * splitChar.length(),
+ splittee.length());
+ }
+ Vector returns = new Vector();
+ int start = 0;
+ int length = splittee.length();
+ spot = 0;
+ while (start < length && (spot = splittee.indexOf(splitChar, start)) > -1)
+ {
+ if (spot > 0)
+ {
+ returns.addElement(splittee.substring(start, spot));
+ }
+ start = spot + splitChar.length();
+ }
+ if (start < length)
+ {
+ returns.add(splittee.substring(start));
+ }
+ String[] values = new String[returns.size()];
+ returns.copyInto(values);
+ return values;
+ }
+
+ /**
+ * Report an error through a dialog box.
+ *
+ *@param errorMsg the error message.
+ */
+ public static void reportErrorToUser(String errorMsg)
+ {
+ JOptionPane.showMessageDialog(GuiPackage.getInstance().getMainFrame(),
+ errorMsg,"Error",JOptionPane.ERROR_MESSAGE);
+ }
+
+ /**
+ * Finds a string in an array of strings and returns the
+ *
+ *@param array Array of strings.
+ *@param value String to compare to array values.
+ *@return Index of value in array, or -1 if not in array.
+ */
+
+ public static int findInArray(String[] array, String value)
+ {
+ int count = -1;
+ int index = -1;
+ if (array != null && value != null)
+ {
+ while (++count < array.length)
+ {
+ if (array[count] != null && array[count].equals(value))
+ {
+ index = count;
+ break;
+ }
+ }
+ }
+ return index;
+ }
+
+
+ /**
+ * Takes an array of strings and a tokenizer character, and returns a string
+ * of all the strings concatenated with the tokenizer string in between each
+ * one.
+ *
+ *@param splittee Array of Objects to be concatenated.
+ *@param splitChar Object to unsplit the strings with.
+ *@return Array of all the tokens.
+ */
+
+ public static String unsplit(Object[] splittee, Object splitChar)
+ {
+
+ StringBuffer retVal = new StringBuffer("");
+
+ int count = -1;
+
+ while (++count < splittee.length)
+ {
+
+ if (splittee[count] != null)
+ {
+
+ retVal.append(splittee[count]);
+ }
+
+ if (count + 1 < splittee.length && splittee[count + 1] != null)
+ {
+
+ retVal.append(splitChar);
+ }
+
+ }
+
+ return retVal.toString();
+ }
+ // End Method
+
+
+ /**
+ * Takes an array of strings and a tokenizer character, and returns a string
+ * of all the strings concatenated with the tokenizer string in between each
+ * one.
+ *
+ *@param splittee Array of Objects to be concatenated.
+ *@param splitChar Object to unsplit the strings with.
+ *@param def Default value to replace null values in array.
+ *@return Array of all the tokens.
+ */
+
+ public static String unsplit(Object[] splittee, Object splitChar, String def)
+ {
+
+ StringBuffer retVal = new StringBuffer("");
+
+ int count = -1;
+
+ while (++count < splittee.length)
+ {
+
+ if (splittee[count] != null)
+ {
+
+ retVal.append(splittee[count]);
+ }
+
+ else
+ {
+
+ retVal.append(def);
+ }
+
+ if (count + 1 < splittee.length)
+ {
+
+ retVal.append(splitChar);
+ }
+
+ }
+
+ return retVal.toString();
+ }
+ // End Method
+
+
+ /**
+ * Gets the JMeter Version.
+ * @returns the JMeter version.
+ */
+ public static String getJMeterVersion()
+ {
+ return "1.7Beta2";
+ }
}
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