/*
* #%L
* =====================================================
* _____ _ ____ _ _ _ _
* |_ _|_ __ _ _ ___| |_ / __ \| | | | ___ | | | |
* | | | '__| | | / __| __|/ / _` | |_| |/ __|| |_| |
* | | | | | |_| \__ \ |_| | (_| | _ |\__ \| _ |
* |_| |_| \__,_|___/\__|\ \__,_|_| |_||___/|_| |_|
* \____/
*
* =====================================================
*
* Hochschule Hannover
* (University of Applied Sciences and Arts, Hannover)
* Faculty IV, Dept. of Computer Science
* Ricklinger Stadtweg 118, 30459 Hannover, Germany
*
* Email: trust@f4-i.fh-hannover.de
* Website: http://trust.f4.hs-hannover.de/
*
* This file is part of visitmeta-visualization, version 0.6.0,
* implemented by the Trust@HsH research group at the Hochschule Hannover.
* %%
* Copyright (C) 2012 - 2016 Trust@HsH
* %%
* Licensed 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.
* #L%
*/
package de.hshannover.f4.trust.visitmeta.network;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.log4j.Logger;
import de.hshannover.f4.trust.visitmeta.datawrapper.ExpandedLink;
import de.hshannover.f4.trust.visitmeta.datawrapper.NodeMetadata;
import de.hshannover.f4.trust.visitmeta.datawrapper.RichMetadata;
import de.hshannover.f4.trust.visitmeta.interfaces.Link;
import de.hshannover.f4.trust.visitmeta.interfaces.Metadata;
/**
* Pool class that contains a mapping of all Links to ExpandedLinks in the
* current layout.
*/
public class PoolExpandedLink {
private static final Logger LOGGER = Logger.getLogger(PoolExpandedLink.class);
private PoolNodeIdentifier mIdentifierPool;
private PoolNodeMetadata mMetadataPool;
private HashMap<Link, ExpandedLink> mLinkPool;
/**
* @param identifierPool
* Identifier pool related to the Link pool.
* @param metadataPool
* Metadata pool related to the Link pool.
*/
public PoolExpandedLink(PoolNodeIdentifier identifierPool, PoolNodeMetadata metadataPool) {
mIdentifierPool = identifierPool;
mMetadataPool = metadataPool;
mLinkPool = new HashMap<Link, ExpandedLink>();
}
/**
* @param link
* The Link for the ExpandedLink.
* @return The new ExpandedLink or null if the ExpandedLink does not exist.
*/
public ExpandedLink getLink(Link link) {
return mLinkPool.get(link);
}
/**
* Removes an ExpandedLink.
*
* @param link
* The Link that references the ExpandedLink.
*/
public void release(Link link) {
mLinkPool.remove(link);
}
/**
* Removes all ExpandedLinks.
*/
public void clear() {
mLinkPool.clear();
}
/**
* @param link
* The Link for the ExpandedLink.
* @return The new ExpandedLink or null if the ExpandedLink already existed.
*/
public ExpandedLink create(Link link) {
if (mLinkPool.containsKey(link)) {
return null;
} else {
LOGGER.debug("Create new link.");
List<NodeMetadata> metaList = new ArrayList<NodeMetadata>();
for (Metadata metadata : link.getMetadata()) {
NodeMetadata nodeMetadata = mMetadataPool.createOrGet(new RichMetadata(metadata, link));
metaList.add(nodeMetadata);
}
ExpandedLink expandedLink = new ExpandedLink(link, mIdentifierPool.getIdentifier(link.getIdentifiers()
.getFirst()), mIdentifierPool.getIdentifier(link.getIdentifiers().getSecond()), metaList);
mLinkPool.put(link, expandedLink);
return expandedLink;
}
}
}