Update of /var/cvs/src/org/mmbase/module/builders
In directory james.mmbase.org:/tmp/cvs-serv7265/src/org/mmbase/module/builders
Modified Files:
AbstractServletBuilder.java
Log Message:
move some code from ReferredATtcahments to AbstractServletBuilder. This allows
for the sue of url fields to store references to binary files, rather than the
files themselves
See also: http://cvs.mmbase.org/viewcvs/src/org/mmbase/module/builders
Index: AbstractServletBuilder.java
===================================================================
RCS file: /var/cvs/src/org/mmbase/module/builders/AbstractServletBuilder.java,v
retrieving revision 1.53
retrieving revision 1.54
diff -u -b -r1.53 -r1.54
--- AbstractServletBuilder.java 25 Feb 2008 12:35:05 -0000 1.53
+++ AbstractServletBuilder.java 29 Jul 2008 08:38:53 -0000 1.54
@@ -30,13 +30,15 @@
*
*
* @author Michiel Meeuwissen
- * @version $Id: AbstractServletBuilder.java,v 1.53 2008/02/25 12:35:05
michiel Exp $
+ * @version $Id: AbstractServletBuilder.java,v 1.54 2008/07/29 08:38:53 pierre
Exp $
* @since MMBase-1.6
*/
public abstract class AbstractServletBuilder extends MMObjectBuilder {
private static final Logger log =
Logging.getLoggerInstance(AbstractServletBuilder.class);
+ public static final String PROPERTY_EXTERNAL_URL_FIELD =
"externalUrlField";
+
public static final String FIELD_MIMETYPE = "mimetype";
public static final String FIELD_FILENAME = "filename";
public static final String FIELD_HANDLE = "handle";
@@ -49,13 +51,9 @@
new Parameter.Wrapper(MMObjectBuilder.GUI_PARAMETERS) // example, does
not make too much sense :-)
};
-
public final static Parameter[] FORMAT_PARAMETERS = {};
public final static Parameter[] MIMETYPE_PARAMETERS = {};
-
-
-
/**
* In this string the path to the servlet is stored.
*/
@@ -110,10 +108,27 @@
abstract protected String getDefaultPath();
/**
+ * If set, this points out a field in the builder that optionally contains
+ * a url to an external (binary) source, which is then used as the stored
+ * attachment (instead of accessing the database).
+ */
+ protected String externalUrlField = null;
+
+ /**
+ * Read 'externalUrlField' property
+ */
+ public boolean init() {
+ String property = getInitParameter(PROPERTY_EXTERNAL_URL_FIELD);
+ if (property != null) {
+ externalUrlField = property;
+ }
+ return super.init();
+ }
+
+ /**
* @param association e.g. 'images' or 'attachments'
* @param root Path to root of appliciation (perhaps relative).
*/
-
private String getServletPathWithAssociation(String association, String
root) {
if (MMBaseContext.isInitialized()) {
javax.servlet.ServletContext sx =
MMBaseContext.getServletContext();
@@ -248,13 +263,16 @@
}
return result;
}
+
public boolean commit(MMObjectNode node) {
Collection<String> changed = node.getChanged();
if (log.isDebugEnabled()) {
log.debug("Committing node " + node.getNumber() + " memory: " +
SizeOf.getByteSize(node) + " fields " + changed);
}
- if (changed.contains(FIELD_HANDLE)) {
+ if (changed.contains(FIELD_HANDLE) ||
+ (externalUrlField != null && changed.contains(externalUrlField))
+ ) {
// set those fields to null, which are not changed too:
Collection<String> cp = new ArrayList<String>();
cp.addAll(getHandleFields());
@@ -460,6 +478,15 @@
}
public String getFunctionValue(Node node, Parameters a) {
+ // verify if the object is stored externally (in which case
+ // its url has been filled in)
+ // if so, return the url of the external source
+ if (AbstractServletBuilder.this.externalUrlField != null )
{
+ String url = node.getStringValue(externalUrlField);
+ if (url != null && !url.equals("")) {
+ return url;
+ }
+ }
StringBuilder servlet = getServletPath(a);
String session = getSession(a, node.getNumber());
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