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/*******************************************************************************
* Copyright (c) 2001, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.j2ee.commonarchivecore.internal.helpers;
import java.util.List;
import org.eclipse.jst.j2ee.commonarchivecore.internal.Archive;
import org.eclipse.jst.j2ee.commonarchivecore.internal.CommonArchiveResourceHandler;
import org.eclipse.jst.j2ee.commonarchivecore.internal.ModuleFile;
import org.eclipse.jst.j2ee.commonarchivecore.internal.exception.OpenFailureException;
import org.eclipse.jst.j2ee.commonarchivecore.internal.strategy.ImportStrategy;
/**
* @see ArchiveTypeDiscriminator
*/
public abstract class ArchiveTypeDiscriminatorImpl implements ArchiveTypeDiscriminator {
protected List children;
public ArchiveTypeDiscriminatorImpl() {
super();
}
/**
* @see com.ibm.etools.archive.ArchiveTypeDiscriminator
*/
public void addChild(ArchiveTypeDiscriminator child) {
if (hasChild(child))
return;
getChildren().add(child);
}
/**
* @see com.ibm.etools.archive.ArchiveTypeDiscriminator
*/
public void addChildAfter(org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveTypeDiscriminator child, org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveTypeDiscriminator predecessor) throws java.util.NoSuchElementException {
if (hasChild(child))
return;
int index = getChildren().indexOf(predecessor);
if (index >= 0) {
index++;
getChildren().add(index, child);
} else {
throw new java.util.NoSuchElementException(predecessor.toString());
}
}
/**
* @see com.ibm.etools.archive.ArchiveTypeDiscriminator
*/
public void addChildBefore(ArchiveTypeDiscriminator child, ArchiveTypeDiscriminator successor) throws java.util.NoSuchElementException {
if (hasChild(child))
return;
int index = getChildren().indexOf(successor);
if (index >= 0) {
getChildren().add(index, child);
} else {
throw new java.util.NoSuchElementException(successor.toString());
}
}
/**
* @see com.ibm.etools.archive.ArchiveTypeDiscriminator
*/
public abstract boolean canImport(Archive anArchive);
/**
* @see com.ibm.etools.archive.ArchiveTypeDiscriminator
*/
public Archive convert(Archive anArchive) throws OpenFailureException {
Archive destination = createConvertedArchive();
//turn of notifications
destination.eSetDeliver(false);
destination.eSetDeliver(false);
//Copy the relevant attributes
destination.setURI(anArchive.getURI());
destination.setOriginalURI(anArchive.getURI());
destination.setSize(anArchive.getSize());
destination.setLastModified(anArchive.getLastModified());
destination.setLoadStrategy(anArchive.getLoadStrategy());
destination.setOptions(anArchive.getOptions());
destination.setExtraClasspath(anArchive.getExtraClasspath());
if (destination.isModuleFile()) {
ImportStrategy importStrategy = createImportStrategy(anArchive, destination);
((ModuleFile) destination).setImportStrategy(importStrategy);
}
//turn notifications back on
destination.eSetDeliver(true);
destination.eSetDeliver(true);
return destination;
}
public abstract Archive createConvertedArchive();
/**
* @see com.ibm.etools.archive.ArchiveTypeDiscriminator
*/
public abstract ImportStrategy createImportStrategy(Archive old, Archive newArchive);
public java.util.List getChildren() {
if (children == null)
children = new java.util.ArrayList();
return children;
}
/**
* Iterate through each child and attempt to convert the archive to the child's type; return the
* converted archive from the first child that succeeds, or null if no child succeeds or no
* child exists
*/
protected Archive getImportableArchiveFromChild(Archive anArchive) throws OpenFailureException {
if (!hasChildren()) {
return null;
}
List theChildren = getChildren();
Archive childConvertedArchive = null;
for (int i = 0; i < theChildren.size(); i++) {
ArchiveTypeDiscriminator child = (ArchiveTypeDiscriminator) theChildren.get(i);
childConvertedArchive = child.openArchive(anArchive);
if (childConvertedArchive != null) {
return childConvertedArchive;
}
}
return null;
}
protected String getXmlDDMessage(String archiveType, String ddUri) {
return CommonArchiveResourceHandler.getString("invalid_archive_EXC_", (new Object[]{archiveType, ddUri})); //$NON-NLS-1$ = "Archive is not a valid {0} because the deployment descriptor can not be found (case sensitive): {1}"
}
public boolean hasChild(ArchiveTypeDiscriminator disc) {
return hasChildren() && getChildren().contains(disc);
}
public boolean hasChildren() {
return children != null && children.size() > 0;
}
/**
* @see com.ibm.etools.archive.ArchiveTypeDiscriminator
*/
public Archive openArchive(Archive anArchive) throws OpenFailureException {
if (!canImport(anArchive)) {
return null;
}
Archive convertedArchive = convert(anArchive);
Archive childConvertedArchive = getImportableArchiveFromChild(convertedArchive);
if (childConvertedArchive != null)
return childConvertedArchive;
return convertedArchive;
}
/**
* @see com.ibm.etools.archive.ArchiveTypeDiscriminator
*/
public void removeChild(org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.ArchiveTypeDiscriminator child) {
getChildren().remove(child);
}
public void setChildren(java.util.List newChildren) {
children = newChildren;
}
}
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