| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.team.internal.ccvs.core.client.listeners; |
| |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.team.internal.ccvs.core.CVSException; |
| import org.eclipse.team.internal.ccvs.core.Policy; |
| import org.eclipse.team.internal.ccvs.core.client.Command.LocalOption; |
| |
| /** |
| * |
| */ |
| public class ModuleExpansion { |
| |
| /** Name of the CVS module as found in the CVSROOT/modules file */ |
| private String moduleName; |
| |
| /** Expansion of the module name returned by the CVS server */ |
| private String[] expansions; |
| |
| private LocalOption[] options; |
| |
| ModuleExpansion(String moduleName, String[] expansions, LocalOption[] options) { |
| this.moduleName = moduleName; |
| this.expansions = expansions; |
| this.options = options; |
| } |
| |
| /** |
| * @see IModuleExpansion#getModuleName() |
| */ |
| public String getModuleName() { |
| return moduleName; |
| } |
| |
| /** |
| * @see IModuleExpansion#getModuleExpansionString() |
| */ |
| public String getModuleExpansionString() { |
| String result = expansions[0]; |
| for (int i=1;i<expansions.length; i++) |
| result = result + ", " + expansions[i]; //$NON-NLS-1$ |
| return result; |
| } |
| |
| /** |
| * @see IModuleExpansion#getExpansions() |
| */ |
| public String[] getExpansions() { |
| return expansions; |
| } |
| |
| public LocalOption[] getOptions() { |
| return options; |
| } |
| |
| /** |
| * Translate an array of module names to their expansions. |
| * The resulting List of Strings may be bigger than the original |
| */ |
| private List getExpansionsFor(String[] possibleModules, Map moduleMappings, int depth) throws CVSException { |
| List result = new ArrayList(); |
| for (int i=0;i<possibleModules.length;i++) { |
| // Is it a module? |
| if (possibleModules[i].charAt(0) == '&') |
| result.addAll(getExpansionsFor(possibleModules[i].substring(1), moduleMappings, depth)); |
| else |
| result.add(possibleModules[i]); |
| } |
| return result; |
| } |
| |
| /** |
| * Translate a module name to its expansion. |
| * The resulting List may contain one or more Strings |
| */ |
| private List getExpansionsFor(String module, Map moduleMappings, int depth) throws CVSException { |
| if (depth > moduleMappings.size()) { |
| // Indicate that a circular reference exists |
| throw new CVSException(Policy.bind("ModuleExpansion.circular", module));//$NON-NLS-1$ |
| } |
| Object mappings = moduleMappings.get(module); |
| if (mappings == null) { |
| // If there's no mapping assume it is a project name |
| List result = new ArrayList(); |
| result.add(module); |
| return result; |
| } else { |
| // Follow any expansion chains |
| return getExpansionsFor(((ModuleExpansion)mappings).expansions, moduleMappings, depth + 1); |
| } |
| } |
| |
| /** |
| * Resolve the module mappings using moduleMappings which maps |
| * module names to their ModuleExpansion |
| */ |
| public void resolveModuleReferencesUsing(Map moduleMappings) { |
| try { |
| List result = getExpansionsFor(expansions, moduleMappings, 0); |
| expansions = (String[])result.toArray(new String[result.size()]); |
| } catch (CVSException e) { |
| // Is this the best way to show the circular reference problem? |
| // Or should we just leave the expansions untouched? |
| List result = new ArrayList(); |
| result.add(e.getStatus().getMessage()); |
| result.addAll(Arrays.asList(expansions)); |
| expansions = (String[])result.toArray(new String[result.size()]); |
| } |
| } |
| } |
| |
| |