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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.sca.workspace.admin.impl;
import static org.apache.tuscany.sca.workspace.admin.impl.DomainAdminUtil.compositeKey;
import static org.apache.tuscany.sca.workspace.admin.impl.DomainAdminUtil.compositeQName;
import static org.apache.tuscany.sca.workspace.admin.impl.DomainAdminUtil.compositeTitle;
import static org.apache.tuscany.sca.workspace.admin.impl.DomainAdminUtil.contributionURI;
import java.io.IOException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.assembly.Component;
import org.apache.tuscany.sca.assembly.Composite;
import org.apache.tuscany.sca.implementation.data.collection.Entry;
import org.apache.tuscany.sca.implementation.data.collection.Item;
import org.apache.tuscany.sca.implementation.data.collection.ItemCollection;
import org.apache.tuscany.sca.implementation.data.collection.LocalItemCollection;
import org.apache.tuscany.sca.implementation.data.collection.NotFoundException;
import org.apache.tuscany.sca.implementation.node.NodeImplementation;
import org.osoa.sca.annotations.Init;
import org.osoa.sca.annotations.Reference;
import org.osoa.sca.annotations.Scope;
import org.osoa.sca.annotations.Service;
/**
* Implementation of a composite install image collection service.
*
* @version $Rev$ $Date$
*/
@Scope("COMPOSITE")
@Service(interfaces={ItemCollection.class, LocalItemCollection.class, Servlet.class})
public class CompositeImageCollectionImpl extends HttpServlet implements ItemCollection, LocalItemCollection, Servlet {
private static final long serialVersionUID = 1L;
private final static Logger logger = Logger.getLogger(CompositeImageCollectionImpl.class.getName());
@Reference
public LocalItemCollection contributionCollection;
@Reference
public LocalItemCollection cloudCollection;
/**
* Initialize the component.
*/
@Init
public void initialize() {
}
public Entry<String, Item>[] getAll() {
throw new UnsupportedOperationException();
}
public Item get(String key) throws NotFoundException {
throw new UnsupportedOperationException();
}
public String post(String key, Item item) {
throw new UnsupportedOperationException();
}
public void put(String key, Item item) throws NotFoundException {
throw new UnsupportedOperationException();
}
public void delete(String key) throws NotFoundException {
throw new UnsupportedOperationException();
}
public Entry<String, Item>[] query(String queryString) {
logger.info("query " + queryString);
if (queryString.startsWith("composite=")) {
// Expecting a key in the form:
// composite:contributionURI;namespace;localName
int e = queryString.indexOf('=');
String key = queryString.substring(e + 1);
String contributionURI = contributionURI(key);
QName qname = compositeQName(key);
// Return a collection containing the following entries:
// the resolved version of the specified composite
// the required contributions
List<Entry<String, Item>> entries = new ArrayList<Entry<String, Item>>();
// Add the resolved composite entry
Entry<String, Item> compositeEntry = new Entry<String, Item>();
Item compositeItem = new Item();
compositeItem.setTitle(compositeTitle(contributionURI, qname));
compositeItem.setLink("/composite-resolved/" + key);
compositeEntry.setKey(key);
compositeEntry.setData(compositeItem);
entries.add(compositeEntry);
// Get the collection of required contributions
Entry<String, Item>[] contributionEntries = contributionCollection.query("alldependencies=" + contributionURI);
for (Entry<String, Item> entry: contributionEntries) {
Item item = entry.getData();
item.setContents(null);
entries.add(entry);
}
return entries.toArray(new Entry[entries.size()]);
} else {
throw new UnsupportedOperationException();
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// Get the request path
String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8");
String key = path.startsWith("/")? path.substring(1) : path;
logger.info("get " + key);
// The key contains a node name, redirect
// to the corresponding composite image
// Get the collection of cloud composites
Entry<String, Item>[] cloudEntries = cloudCollection.getAll();
// Find the specified node
for (Entry<String, Item> cloudEntry: cloudEntries) {
QName qname = compositeQName(cloudEntry.getKey());
if (qname.getLocalPart().equals(key)) {
// Found the specified node
String related = cloudEntry.getData().getRelated();
int i = related.indexOf("composite:");
if (i != -1) {
// Redirect to its composite image
String compositeImage = "/composite-image/?composite=" + related.substring(i);
response.sendRedirect(compositeImage);
return;
}
}
}
// Node not found
response.sendError(HttpServletResponse.SC_NOT_FOUND, key);
return;
}
}
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