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JDBC driver to allow clients to use JCR-SQL2 to query a local or remote ModeShape JCR repository.
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/*
* ModeShape (http://www.modeshape.org)
*
* 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 org.modeshape.jdbc.rest;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
/**
* POJO which can unmarshal the {@link org.codehaus.jettison.json.JSONObject} representation of a list of repositories coming
* from a ModeShape REST Service.
*
* @author Horia Chiorean ([email protected])
*/
public final class Repositories implements Iterable {
private static final String KEY_REPOSITORIES = "repositories";
private static final String KEY_NAME = "name";
private final Map repositories;
/**
* Creates a new instance wrapping the JSON data.
*
* @param json a {@link org.codehaus.jettison.json.JSONObject} coming from the REST server; never {@code null}
*/
protected Repositories( JSONObject json ) {
try {
if (!json.has(KEY_REPOSITORIES)) {
throw new IllegalArgumentException("Invalid JSON object: " + json);
}
JSONArray repositoriesJSON = json.getJSONArray(KEY_REPOSITORIES);
int length = repositoriesJSON.length();
this.repositories = new HashMap<>(length);
for (int i = 0; i < length; i++) {
JSONObject repositoryJSON = repositoriesJSON.getJSONObject(i);
Repository repository = new Repository(repositoryJSON);
repositories.put(repository.getName(), repository);
}
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
@Override
public Iterator iterator() {
return repositories.values().iterator();
}
/**
* Returns the list of repositories this container holds.
*
* @return a {@code List(Repository)}, never {@code null}
*/
public Set getRepositories() {
return new HashSet<>(repositories.values());
}
/**
* Returns a list of all the repository names.
*
* @return a {@code Set} of names, never {@code null}
*/
public Set getRepositoryNames() {
return new HashSet<>(repositories.keySet());
}
/**
* Returns a repository with the given name from the list of contained repositories.
*
* @param name a {@code String} the name of the repository to look for; never {@code null}
* @return either a {@link Repositories.Repository} instance or {@code null} if
* there is no such repository.
*/
public Repository getRepository(String name) {
return repositories.get(name);
}
/**
* POJO representation of a {@link javax.jcr.Repository}
*/
public static final class Repository {
private final String name;
private final Map metadata;
private final int activeSessionsCount;
@SuppressWarnings( "unchecked" )
protected Repository( JSONObject object ) {
try {
this.name = object.getString(KEY_NAME);
this.activeSessionsCount = object.has("activeSessionsCount") ? object.getInt("activeSessionsCount") : 0;
this.metadata = new LinkedHashMap<>();
if (object.has("metadata")) {
JSONObject metadataObject = object.getJSONObject("metadata");
for (Iterator keysIterator = metadataObject.keys(); keysIterator.hasNext(); ) {
String key = keysIterator.next();
Object value = metadataObject.get(key);
if (value instanceof JSONArray) {
JSONArray array = (JSONArray)value;
String[] strings = new String[array.length()];
for (int i = 0; i < array.length(); i++) {
strings[i] = array.get(i).toString();
}
this.metadata.put(key, strings);
} else {
this.metadata.put(key, value.toString());
}
}
}
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
/**
* Returns the name of the repository.
*
* @return a {@code String}, never {@code null}
*/
public String getName() {
return name;
}
/**
* Returns the repository metadata, if any.
*
* @return a {@code Map(metadataKey, metadataValue)}, never {@code null}
*/
public Map getMetadata() {
return metadata;
}
/**
* Returns the number of active sessions on this repository.
*
* @return an {@code int}, never negative.
*/
public int getActiveSessionsCount() {
return activeSessionsCount;
}
}
}