Java tutorial
/** * Copyright 2005-2014 Red Hat, Inc. * * Red Hat 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 io.fabric8.partition.internal.repositories; import com.google.common.base.Charsets; import com.google.common.collect.Lists; import com.google.common.io.Resources; import io.fabric8.api.FabricException; import io.fabric8.api.FabricService; import io.fabric8.api.Profile; import io.fabric8.api.Version; import io.fabric8.git.internal.GitDataStore; import io.fabric8.partition.internal.BaseWorkItemRepository; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.net.URL; import java.util.List; public class ProfileWorkItemRepository extends BaseWorkItemRepository implements Runnable { private static final Logger LOGGER = LoggerFactory.getLogger(ZkWorkItemRepository.class); private final String name; private final FabricService fabricService; private final GitDataStore dataStore; private final String profile; private final String folderPath; private volatile String lastModified = ""; public ProfileWorkItemRepository(String name, GitDataStore dataStore, String partitionsPath, FabricService fabricService) { this.name = name; this.dataStore = dataStore; this.fabricService = fabricService; int index = partitionsPath.indexOf("/"); this.profile = partitionsPath.substring((ProfileWorkItemRepositoryFactory.SCHME + ":").length(), index); this.folderPath = partitionsPath.substring(index + 1); } @Override public void start() { dataStore.trackConfiguration(this); run(); } @Override public void stop() { dataStore.untrackConfiguration(this); } @Override public void close() { stop(); } @Override public List<String> listWorkItemLocations() { List<String> items = Lists.newArrayList(); try { String version = dataStore.getContainerVersion(name); Version v = fabricService.getVersion(version); Profile p = v.getProfile(profile); for (String f : p.getFileConfigurations().keySet()) { if (f.startsWith(folderPath)) { items.add(f); } } } catch (Exception e) { LOGGER.debug("Error getting work items from profile repository. Returning empty.", e); } return items; } @Override public String readContent(String location) { try { return Resources.toString(new URL(ProfileWorkItemRepositoryFactory.SCHME + ":" + location), Charsets.UTF_8); } catch (Exception e) { throw FabricException.launderThrowable(e); } } @Override public void run() { String modifed = dataStore.getLastModified(dataStore.getContainerVersion(name), profile); if (!modifed.equals(lastModified)) { notifyListeners(); lastModified = modifed; } } }