| /* |
| * Copyright 2008 Google Inc. |
| * |
| * 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 com.google.gwt.dev; |
| |
| import com.google.gwt.dev.cfg.BindingProperty; |
| import com.google.gwt.dev.cfg.StaticPropertyOracle; |
| import com.google.gwt.dev.util.collect.Lists; |
| |
| import java.io.Serializable; |
| import java.util.List; |
| import java.util.SortedMap; |
| import java.util.SortedSet; |
| import java.util.TreeMap; |
| |
| /** |
| * Represents the state of a single permutation for compile. |
| */ |
| public final class Permutation implements Serializable { |
| |
| private final int id; |
| |
| private List<StaticPropertyOracle> orderedPropertyOracles = Lists.create(); |
| private List<SortedMap<String, String>> orderedRebindAnswers = Lists.create(); |
| |
| /** |
| * Clones an existing permutation, but with a new id. |
| * |
| * @param id new permutation id |
| * @param other Permutation to copy |
| */ |
| public Permutation(int id, Permutation other) { |
| this.id = id; |
| orderedPropertyOracles = Lists.create(other.orderedPropertyOracles); |
| orderedRebindAnswers = Lists.create(other.orderedRebindAnswers); |
| } |
| |
| public Permutation(int id, StaticPropertyOracle propertyOracle) { |
| this.id = id; |
| orderedPropertyOracles = Lists.add(orderedPropertyOracles, propertyOracle); |
| orderedRebindAnswers = Lists.add(orderedRebindAnswers, |
| new TreeMap<String, String>()); |
| } |
| |
| public int getId() { |
| return id; |
| } |
| |
| public SortedMap<String, String>[] getOrderedRebindAnswers() { |
| @SuppressWarnings("unchecked") |
| SortedMap<String, String>[] arr = new SortedMap[orderedRebindAnswers.size()]; |
| return orderedRebindAnswers.toArray(arr); |
| } |
| |
| /** |
| * Returns the property oracles, sorted by property values. |
| */ |
| public StaticPropertyOracle[] getPropertyOracles() { |
| return orderedPropertyOracles.toArray(new StaticPropertyOracle[orderedPropertyOracles.size()]); |
| } |
| |
| /** |
| * This is called to merge two permutations that either have identical rebind |
| * answers or were explicitly collapsed using <collapse-property>. |
| */ |
| public void mergeFrom(Permutation other, SortedSet<String> liveRebindRequests) { |
| if (getClass().desiredAssertionStatus()) { |
| for (SortedMap<String, String> myRebind : orderedRebindAnswers) { |
| for (SortedMap<String, String> otherRebind : other.orderedRebindAnswers) { |
| for (String rebindRequest : liveRebindRequests) { |
| String myAnswer = myRebind.get(rebindRequest); |
| String otherAnswer = otherRebind.get(rebindRequest); |
| assert myAnswer.equals(otherAnswer); |
| } |
| } |
| } |
| } |
| mergeRebindsFromCollapsed(other); |
| } |
| |
| /** |
| * This is called to collapse one permutation into another where the rebinds |
| * vary between the two permutations. |
| */ |
| public void mergeRebindsFromCollapsed(Permutation other) { |
| assert other.orderedPropertyOracles.size() == other.orderedRebindAnswers.size(); |
| orderedPropertyOracles = Lists.addAll(orderedPropertyOracles, |
| other.orderedPropertyOracles); |
| orderedRebindAnswers = Lists.addAll(orderedRebindAnswers, |
| other.orderedRebindAnswers); |
| other.destroy(); |
| } |
| |
| /** |
| * Shows a list of the property settings that were set to make up this |
| * permutation in human readable form. |
| */ |
| public String prettyPrint() { |
| StringBuilder builder = new StringBuilder(); |
| for (StaticPropertyOracle oracle : orderedPropertyOracles) { |
| String[] values = oracle.getOrderedPropValues(); |
| BindingProperty[] props = oracle.getOrderedProps(); |
| assert values.length == props.length; |
| for (int i = 0; i < props.length; i++) { |
| builder.append(props[i].getName() + "=" + values[i]); |
| if (i < props.length - 1) { |
| builder.append(","); |
| } |
| } |
| } |
| return builder.toString(); |
| } |
| |
| public void putRebindAnswer(String requestType, String resultType) { |
| assert orderedRebindAnswers.size() == 1 : "Cannot add rebind to merged Permutation"; |
| SortedMap<String, String> answerMap = orderedRebindAnswers.get(0); |
| assert answerMap != null; |
| answerMap.put(requestType, resultType); |
| } |
| |
| /** |
| * Clear the state of the Permutation. This aids the correctness-checking code |
| * in {@link #mergeFrom}. |
| */ |
| private void destroy() { |
| orderedPropertyOracles = Lists.create(); |
| orderedRebindAnswers = Lists.create(); |
| } |
| } |