Java tutorial
/** * Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies * * Please see distribution for license. */ package com.opengamma.web.bundle; import java.util.Collections; import java.util.Map; import java.util.Map.Entry; import java.util.Set; import java.util.concurrent.ConcurrentHashMap; import org.apache.commons.lang.builder.ToStringBuilder; import org.apache.commons.lang.builder.ToStringStyle; import com.opengamma.util.ArgumentChecker; /** * Manages the CSS/Javascript bundles. * <p> * This acts as the root of the tree. */ public class BundleManager { /** * The map of bundles by ID. */ private Map<String, Bundle> _bundleMap = new ConcurrentHashMap<String, Bundle>(); /** * Creates an instance. */ public BundleManager() { } //------------------------------------------------------------------------- /** * Looks up a bundle by ID. * * @param id the ID to look up, not null * @return the bundle, null if not found */ public Bundle getBundle(String id) { return _bundleMap.get(id); } /** * Adds a bundle to the manager. * * @param bundle the bundle to add, not null */ public void addBundle(Bundle bundle) { ArgumentChecker.notNull(bundle, "bundle"); ArgumentChecker.notNull(bundle.getId(), "bundle.id"); // recursively add children as well for (Bundle loop : bundle.getAllBundles()) { _bundleMap.put(loop.getId(), loop); } } /** * Gets the set of all bundle IDs. * * @return the unmodifiable bundle ID set, not null */ public Set<String> getBundleIds() { return Collections.unmodifiableSet(_bundleMap.keySet()); } @Override public String toString() { ToStringBuilder builder = new ToStringBuilder(this, ToStringStyle.MULTI_LINE_STYLE); for (Entry<String, Bundle> entry : _bundleMap.entrySet()) { builder.append(entry.getKey(), entry.getValue().toString()); } return builder.toString(); // return ToStringBuilder.reflectionToString(this, ToStringStyle.MULTI_LINE_STYLE); } }