Java tutorial
/** * Copyright (C) 2012 Jean-Christophe Gay (contact@jeanchristophegay.com) * * 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 fr.jcgay.maven.plugin.buildplan.display; import com.google.common.base.Strings; import com.google.common.collect.ArrayListMultimap; import com.google.common.collect.Multimap; import org.apache.maven.plugin.MojoExecution; import org.apache.maven.plugin.descriptor.MojoDescriptor; import java.util.Collection; import java.util.Collections; import java.util.HashMap; import java.util.Map; public abstract class AbstractTableDescriptor implements TableDescriptor { protected static Map<TableColumn, Integer> findMaxSize(Collection<MojoExecution> executions, TableColumn... columns) { Map<TableColumn, Integer> result = new HashMap<TableColumn, Integer>(); Multimap<TableColumn, Integer> count = ArrayListMultimap.create(); for (MojoExecution execution : executions) { for (TableColumn column : columns) { switch (column) { case ARTIFACT_ID: count.put(column, safeLength(execution.getArtifactId())); break; case EXECUTION_ID: count.put(column, safeLength(execution.getExecutionId())); break; case GOAL: count.put(column, safeLength(execution.getGoal())); break; case PHASE: MojoDescriptor mojoDescriptor = execution.getMojoDescriptor(); if (mojoDescriptor != null && mojoDescriptor.getPhase() != null) { count.put(column, safeLength(mojoDescriptor.getPhase())); } else { count.put(column, safeLength(execution.getLifecyclePhase())); } } } } for (TableColumn column : TableColumn.values()) { count.put(column, column.title().length()); } for (TableColumn key : count.keySet()) { result.put(key, Collections.max(count.get(key))); } return result; } private static int safeLength(String string) { return Strings.nullToEmpty(string).length(); } }