luetzkendorf 2005/02/02 09:14:17
Added: src/webdav/server/org/apache/slide/webdav/util/properties
ConstantProperty.java DefaultedProperty.java
Log:
Helper classes for standard cases of computed properties
Revision Changes Path
1.1
jakarta-slide/src/webdav/server/org/apache/slide/webdav/util/properties/ConstantProperty.java
Index: ConstantProperty.java
===================================================================
package org.apache.slide.webdav.util.properties;
import org.apache.slide.common.NamespaceAccessToken;
import org.apache.slide.common.PropertyName;
import org.apache.slide.common.SlideException;
import org.apache.slide.content.NodeRevisionDescriptor;
import org.apache.slide.content.NodeRevisionDescriptors;
import org.apache.slide.util.conf.Configuration;
import org.apache.slide.util.conf.ConfigurationException;
import org.apache.slide.webdav.util.WebdavContext;
import org.apache.slide.webdav.util.resourcekind.ResourceKind;
/**
* "Computed" property containing a constant value.
*/
public class ConstantProperty extends AbstractComputedProperty implements
ConfigurablePropertyComputer{
private PropertyName propertyName;
private String constantValue = "constant not specified";
public void setPropertyName(PropertyName propertyName) {
this.propertyName = propertyName;
}
public void configure(Configuration configuration)
throws ConfigurationException {
try {
Configuration c =
configuration.getConfiguration("constant-value");
this.constantValue = c.getValue("");
} catch (ConfigurationException e) {
// ignore; no default-value given; is ok too
}
}
public PropertyName getPropertyName() {
return this.propertyName;
}
/* (non-Javadoc)
* @see
org.apache.slide.webdav.util.properties.PropertyComputer#computeValue(org.apache.slide.common.NamespaceAccessToken,
org.apache.slide.content.NodeRevisionDescriptors,
org.apache.slide.content.NodeRevisionDescriptor,
org.apache.slide.webdav.util.resourcekind.ResourceKind,
org.apache.slide.webdav.util.WebdavContext)
*/
public Object computeValue(NamespaceAccessToken nsaToken,
NodeRevisionDescriptors revisionDescriptors,
NodeRevisionDescriptor revisionDescriptor,
ResourceKind resourceKind, WebdavContext context)
throws SlideException {
return this.constantValue;
}
}
1.1
jakarta-slide/src/webdav/server/org/apache/slide/webdav/util/properties/DefaultedProperty.java
Index: DefaultedProperty.java
===================================================================
package org.apache.slide.webdav.util.properties;
import org.apache.slide.common.NamespaceAccessToken;
import org.apache.slide.common.PropertyName;
import org.apache.slide.common.SlideException;
import org.apache.slide.content.NodeRevisionDescriptor;
import org.apache.slide.content.NodeRevisionDescriptors;
import org.apache.slide.util.conf.Configuration;
import org.apache.slide.util.conf.ConfigurationException;
import org.apache.slide.webdav.util.WebdavContext;
import org.apache.slide.webdav.util.resourcekind.ResourceKind;
/**
* Computed property that looks for the property at the given resource,
* if the resource has no such property the default value is returned.
*/
public class DefaultedProperty extends AbstractComputedProperty implements
ConfigurablePropertyComputer {
private PropertyName propertyName;
private String defaultValue;
/* (non-Javadoc)
* @see
org.apache.slide.webdav.util.properties.ConfigurablePropertyComputer#setPropertyName(org.apache.slide.common.PropertyName)
*/
public void setPropertyName(PropertyName propertyName) {
this.propertyName = propertyName;
}
/* (non-Javadoc)
* @see
org.apache.slide.webdav.util.properties.PropertyComputer#getPropertyName()
*/
public PropertyName getPropertyName() {
return this.propertyName;
}
/* (non-Javadoc)
* @see
org.apache.slide.webdav.util.properties.PropertyComputer#computeValue(org.apache.slide.common.NamespaceAccessToken,
org.apache.slide.content.NodeRevisionDescriptors,
org.apache.slide.content.NodeRevisionDescriptor,
org.apache.slide.webdav.util.resourcekind.ResourceKind,
org.apache.slide.webdav.util.WebdavContext)
*/
public Object computeValue(NamespaceAccessToken nsaToken,
NodeRevisionDescriptors revisionDescriptors,
NodeRevisionDescriptor revisionDescriptor,
ResourceKind resourceKind, WebdavContext context)
throws SlideException {
Object value = revisionDescriptor.getProperty(this.propertyName);
if (value != null) {
return value;
} else {
return this.defaultValue;
}
}
public void configure(Configuration configuration)
throws ConfigurationException {
try {
Configuration c = configuration.getConfiguration("default-value");
this.defaultValue = c.getValue("");
} catch (ConfigurationException e) {
// ignore; no default-value given; is ok too
}
}
}
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
