/*
* Copyright (c) 2007-2009, Osmorc Development Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
* * Neither the name of 'Osmorc Development Team' nor the names of its contributors may be
* used to endorse or promote products derived from this software without specific
* prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.osmorc.manifest.impl;
import com.intellij.openapi.application.Application;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.util.Computable;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiManager;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.lang.manifest.psi.ManifestFile;
import org.osmorc.facet.OsmorcFacet;
import org.osmorc.manifest.BundleManifest;
import org.osmorc.manifest.ManifestHolderDisposedException;
/**
* @author Robert F. Beeger (robert@beeger.net)
*/
public class ModuleManifestHolderImpl extends AbstractManifestHolderImpl {
private final Module myModule;
private final Application myApplication;
private BundleManifest myBundleManifest;
public ModuleManifestHolderImpl(Module module, Application application) {
myModule = module;
myApplication = application;
}
@Nullable
public BundleManifest getBundleManifest() throws ManifestHolderDisposedException {
if (isDisposed()) {
throw new ManifestHolderDisposedException();
}
if (myBundleManifest != null) {
VirtualFile cachedFile = myBundleManifest.getManifestFile().getVirtualFile();
VirtualFile fileFromSettings = getManifestFile();
if (!Comparing.equal(cachedFile, fileFromSettings)) {
myBundleManifest = null; // manifest file changed, need to start from scratch.
}
}
// only try to load the manifest if we have an osmorc facet for that module
if (myBundleManifest == null) {
OsmorcFacet facet = OsmorcFacet.getInstance(myModule);
if (facet != null) {
myBundleManifest = loadManifest();
}
}
return myBundleManifest;
}
public boolean isDisposed() {
return myModule.isDisposed();
}
private BundleManifest loadManifest() {
final VirtualFile manifestFile = getManifestFile();
if (manifestFile != null) {
return myApplication.runReadAction(new Computable<BundleManifest>() {
public BundleManifest compute() {
PsiFile psiFile = PsiManager.getInstance(myModule.getProject()).findFile(manifestFile);
return psiFile instanceof ManifestFile ? new BundleManifestImpl((ManifestFile)psiFile) : null;
}
});
}
return null;
}
@Nullable
private VirtualFile getManifestFile() {
OsmorcFacet facet = OsmorcFacet.getInstance(myModule);
return facet != null ? facet.getManifestFile() : null;
}
@Override
public Object getBoundObject() throws ManifestHolderDisposedException {
if (isDisposed()) {
throw new ManifestHolderDisposedException();
}
return myModule;
}
}