/*
* #!
* Ontopia TMRAP
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* 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.
* !#
*/
package net.ontopia.topicmaps.utils.tmrap;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.ArrayList;
import java.util.Collection;
import net.ontopia.utils.StringifierIF;
import net.ontopia.utils.StringTemplateUtils;
import net.ontopia.infoset.core.LocatorIF;
import net.ontopia.topicmaps.core.TMObjectIF;
import net.ontopia.topicmaps.core.TopicIF;
import net.ontopia.topicmaps.core.TopicMapIF;
import net.ontopia.topicmaps.core.TopicMapStoreIF;
import net.ontopia.topicmaps.entry.TopicMapReferenceIF;
import net.ontopia.topicmaps.entry.TopicMapRepositoryIF;
import net.ontopia.topicmaps.utils.TopicStringifiers;
import net.ontopia.topicmaps.xml.XTMFragmentExporter;
/**
* EXPERIMENTAL: An implementation that looks up topics in all currently open
* topic maps in the given registry.
*/
public class RegistryTopicIndex implements TopicIndexIF {
protected TopicMapRepositoryIF repository;
protected boolean readonly;
protected String editBaseuri;
protected String viewBaseuri;
protected StringifierIF<TopicIF> strify;
/**
* @param editBaseuri a URL of the form
* http://whatever/omnigator/stuff.jsp?tmid=%tmid%&id=%topicid% Note
* that the %key% tokens are used to build the correct URI.
*/
public RegistryTopicIndex(TopicMapRepositoryIF repository, boolean readonly,
String editBaseuri,
String viewBaseuri) {
this.repository = repository;
this.readonly = readonly;
this.editBaseuri = editBaseuri;
this.viewBaseuri = viewBaseuri;
this.strify = TopicStringifiers.getDefaultStringifier();
}
public Collection<TopicIF> getTopics(Collection<LocatorIF> indicators,
Collection<LocatorIF> sources,
Collection<LocatorIF> subjects) {
Collection<TopicIF> topics = new ArrayList<TopicIF>();
Iterator<String> iter = repository.getReferenceKeys().iterator();
while (iter.hasNext()) {
String key = iter.next();
TopicMapReferenceIF ref = repository.getReferenceByKey(key);
if (!ref.isOpen()) continue; // if store not open, we skip it
TopicMapStoreIF store = null;
try {
store = ref.createStore(readonly);
TopicMapIF topicmap = store.getTopicMap();
TopicIF topic;
Iterator<LocatorIF> it = indicators.iterator();
while (it.hasNext()) {
LocatorIF indicator = it.next();
topic = topicmap.getTopicBySubjectIdentifier(indicator);
if (topic != null) topics.add(topic);
}
it = sources.iterator();
while (it.hasNext()) {
LocatorIF srcloc = it.next();
TMObjectIF object = null;
String address = srcloc.getAddress();
if (XTMFragmentExporter.isVirtualReference(address)) {
if (key.equals(XTMFragmentExporter
.sourceTopicMapFromVirtualReference(address))) {
object = topicmap.getObjectById(XTMFragmentExporter
.resolveVirtualReference(address, key));
} else continue;
} else object = topicmap.getObjectByItemIdentifier(srcloc);
if (object instanceof TopicIF) topics.add((TopicIF) object);
}
it = subjects.iterator();
while (it.hasNext()) {
LocatorIF subject = it.next();
topic = topicmap.getTopicBySubjectLocator(subject);
if (topic != null) topics.add(topic);
}
} catch (java.io.IOException e) {
continue;
} finally {
if (store != null) store.close();
}
}
return topics;
}
public Collection<TopicIF> loadRelatedTopics(Collection<LocatorIF> indicators,
Collection<LocatorIF> sources,
Collection<LocatorIF> subjects,
boolean two_step) {
return getTopics(indicators, sources, subjects);
}
public Collection<TopicPage> getTopicPages(Collection<LocatorIF> indicators,
Collection<LocatorIF> sources,
Collection<LocatorIF> subjects) {
Collection<TopicPage> pages = new ArrayList<TopicPage>();
Iterator<String> iter = repository.getReferenceKeys().iterator();
while (iter.hasNext()) {
String key = iter.next();
TopicMapReferenceIF ref = repository.getReferenceByKey(key);
if (!ref.isOpen()) continue; // if store not open, we skip it
TopicMapStoreIF store = null;
try {
store = ref.createStore(readonly);
TopicMapIF topicmap = store.getTopicMap();
TopicIF topic;
Iterator<LocatorIF> it = indicators.iterator();
while (it.hasNext()) {
LocatorIF indicator = it.next();
topic = topicmap.getTopicBySubjectIdentifier(indicator);
if (topic != null) pages.add(getTopicPage(topic, key));
}
it = sources.iterator();
while (it.hasNext()) {
LocatorIF srcloc = it.next();
TMObjectIF object = null;
String address = srcloc.getAddress();
if (XTMFragmentExporter.isVirtualReference(address)) {
if (key.equals(XTMFragmentExporter
.sourceTopicMapFromVirtualReference(address))) {
object = topicmap.getObjectById(XTMFragmentExporter
.resolveVirtualReference(address, key));
} else continue;
} else object = topicmap.getObjectByItemIdentifier(srcloc);
if (object instanceof TopicIF)
pages.add(getTopicPage((TopicIF) object, key));
}
it = subjects.iterator();
while (it.hasNext()) {
LocatorIF subject = it.next();
topic = topicmap.getTopicBySubjectLocator(subject);
if (topic != null) pages.add(getTopicPage(topic, key));
}
} catch (java.io.IOException e) {
continue;
} finally {
if (store != null) store.close();
}
}
return pages;
}
public TopicPages getTopicPages2(Collection<LocatorIF> indicators,
Collection<LocatorIF> sources,
Collection<LocatorIF> subjects) {
TopicPages retVal = new TopicPages();
Iterator<String> iter = repository.getReferenceKeys().iterator();
while (iter.hasNext()) {
String key = iter.next();
TopicMapReferenceIF ref = repository.getReferenceByKey(key);
if (!ref.isOpen()) continue; // if store not open, we skip it
String topicMapHandle = ref.getId();
TopicMapStoreIF store = null;
try {
store = ref.createStore(readonly);
TopicMapIF topicmap = store.getTopicMap();
TopicIF topic;
String tmReifierName = TopicPage.getReifierName(topicmap);
Iterator<LocatorIF> it = indicators.iterator();
while (it.hasNext()) {
LocatorIF indicator = it.next();
topic = topicmap.getTopicBySubjectIdentifier(indicator);
if (topic != null)
retVal.addPage(topicMapHandle, getTopicPage(topic, key),
tmReifierName);
}
it = sources.iterator();
while (it.hasNext()) {
LocatorIF srcloc = it.next();
TMObjectIF object = null;
String address = srcloc.getAddress();
if (XTMFragmentExporter.isVirtualReference(address)) {
if (key.equals(XTMFragmentExporter
.sourceTopicMapFromVirtualReference(address))) {
object = topicmap.getObjectById(XTMFragmentExporter
.resolveVirtualReference(address, key));
} else continue;
} else object = topicmap.getObjectByItemIdentifier(srcloc);
if (object instanceof TopicIF) {
retVal.addPage(topicMapHandle, getTopicPage((TopicIF) object, key),
tmReifierName);
}
}
it = subjects.iterator();
while (it.hasNext()) {
LocatorIF subject = it.next();
topic = topicmap.getTopicBySubjectLocator(subject);
if (topic != null)
retVal.addPage(topicMapHandle, getTopicPage(topic, key),
tmReifierName);
}
} catch (java.io.IOException e) {
continue;
} finally {
if (store != null) store.close();
}
}
return retVal;
}
public void close() {
repository = null;
}
// Internal methods
private TopicPage getTopicPage(TopicIF topic, String key) {
Map<String, Object> map = new HashMap<String, Object>();
map.put("tmid", key);
map.put("topicid", topic.getObjectId());
String name = strify.toString(topic);
String editUrl = null;
String viewUrl = null;
if (editBaseuri != null)
editUrl = StringTemplateUtils.replace(editBaseuri, map);
if (viewBaseuri != null)
viewUrl = StringTemplateUtils.replace(viewBaseuri, map);
return new TopicPage(editUrl, viewUrl, name, name, topic);
}
}