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/*****************************************************************************
* Java Plug-in Framework (JPF)
* Copyright (C) 2004-2007 Dmitry Olshansky
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*****************************************************************************/
package org.java.plugin.registry.xml;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.java.plugin.registry.Documentation;
import org.java.plugin.registry.ManifestProcessingException;
import org.java.plugin.registry.MatchingRule;
import org.java.plugin.registry.PluginDescriptor;
import org.java.plugin.registry.PluginFragment;
import org.java.plugin.registry.PluginPrerequisite;
import org.java.plugin.registry.Version;
/**
* @version $Id$
*/
class PluginPrerequisiteImpl implements PluginPrerequisite {
private static Log log = LogFactory.getLog(PluginPrerequisiteImpl.class);
static boolean matches(final Version source, final Version target,
final MatchingRule match) {
if (source == null) {
return true;
}
switch (match) {
case EQUAL: return target.equals(source);
case EQUIVALENT: return target.isEquivalentTo(source);
case COMPATIBLE: return target.isCompatibleWith(source);
case GREATER_OR_EQUAL: return target.isGreaterOrEqualTo(source);
}
return target.isCompatibleWith(source);
}
private final PluginDescriptorImpl descriptor;
private final PluginFragmentImpl fragment;
private final ModelPrerequisite model;
private DocumentationImpl<PluginPrerequisite> doc;
PluginPrerequisiteImpl(final PluginDescriptorImpl descr,
final PluginFragmentImpl aFragment, final ModelPrerequisite aModel)
throws ManifestProcessingException {
super();
descriptor = descr;
fragment = aFragment;
model = aModel;
if ((model.getPluginId() == null)
|| (model.getPluginId().trim().length() == 0)) {
throw new ManifestProcessingException(
PluginRegistryImpl.PACKAGE_NAME,
"prerequisitePliginIdIsBlank", descr.getId()); //$NON-NLS-1$
}
if (descr.getId().equals(model.getPluginId())) {
throw new ManifestProcessingException(
PluginRegistryImpl.PACKAGE_NAME,
"invalidPrerequisitePluginId", descr.getId()); //$NON-NLS-1$
}
if ((model.getId() == null) || (model.getId().trim().length() == 0)) {
model.setId("prerequisite:" + model.getPluginId()); //$NON-NLS-1$
}
if (model.getDocumentation() != null) {
doc = new DocumentationImpl<PluginPrerequisite>(this,
model.getDocumentation());
}
if (log.isDebugEnabled()) {
log.debug("object instantiated: " + this); //$NON-NLS-1$
}
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#getPluginId()
*/
public String getPluginId() {
return model.getPluginId();
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#getPluginVersion()
*/
public Version getPluginVersion() {
return model.getPluginVersion();
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#getDeclaringPluginDescriptor()
*/
public PluginDescriptor getDeclaringPluginDescriptor() {
return descriptor;
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#getDeclaringPluginFragment()
*/
public PluginFragment getDeclaringPluginFragment() {
return fragment;
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#isOptional()
*/
public boolean isOptional() {
return model.isOptional();
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#isReverseLookup()
*/
public boolean isReverseLookup() {
return model.isReverseLookup();
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#matches()
*/
public boolean matches() {
PluginDescriptor descr = null;
try {
descr = this.descriptor.getRegistry().getPluginDescriptor(
model.getPluginId());
} catch (IllegalArgumentException iae) {
return false;
}
return matches(model.getPluginVersion(), descr.getVersion(),
model.getMatchingRule());
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#getMatchingRule()
*/
public MatchingRule getMatchingRule() {
return model.getMatchingRule();
}
/**
* @see org.java.plugin.registry.PluginPrerequisite#isExported()
*/
public boolean isExported() {
return model.isExported();
}
/**
* @see org.java.plugin.registry.Identity#getId()
*/
public String getId() {
return model.getId();
}
/**
* @see org.java.plugin.registry.Documentable#getDocsPath()
*/
public String getDocsPath() {
return (fragment != null) ? fragment.getDocsPath()
: descriptor.getDocsPath();
}
/**
* @see org.java.plugin.registry.Documentable#getDocumentation()
*/
public Documentation<PluginPrerequisite> getDocumentation() {
return doc;
}
/**
* @see org.java.plugin.registry.UniqueIdentity#getUniqueId()
*/
public String getUniqueId() {
return descriptor.getRegistry().makeUniqueId(
descriptor.getId(), getId());
}
/**
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "{Prerequisite: uid=" + getUniqueId() + "}"; //$NON-NLS-1$ //$NON-NLS-2$
}
}
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