1*b1cdbd2cSJim Jagielski /************************************************************** 2*b1cdbd2cSJim Jagielski * 3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one 4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file 5*b1cdbd2cSJim Jagielski * distributed with this work for additional information 6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file 7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the 8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance 9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at 10*b1cdbd2cSJim Jagielski * 11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0 12*b1cdbd2cSJim Jagielski * 13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing, 14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an 15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the 17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations 18*b1cdbd2cSJim Jagielski * under the License. 19*b1cdbd2cSJim Jagielski * 20*b1cdbd2cSJim Jagielski *************************************************************/ 21*b1cdbd2cSJim Jagielski 22*b1cdbd2cSJim Jagielski 23*b1cdbd2cSJim Jagielski package com.sun.star.report.pentaho; 24*b1cdbd2cSJim Jagielski 25*b1cdbd2cSJim Jagielski import com.sun.star.report.OutputRepository; 26*b1cdbd2cSJim Jagielski 27*b1cdbd2cSJim Jagielski import java.io.IOException; 28*b1cdbd2cSJim Jagielski 29*b1cdbd2cSJim Jagielski 30*b1cdbd2cSJim Jagielski public class DefaultNameGenerator 31*b1cdbd2cSJim Jagielski { 32*b1cdbd2cSJim Jagielski 33*b1cdbd2cSJim Jagielski private final OutputRepository outputRepository; 34*b1cdbd2cSJim Jagielski DefaultNameGenerator(final OutputRepository outputRepository)35*b1cdbd2cSJim Jagielski public DefaultNameGenerator(final OutputRepository outputRepository) 36*b1cdbd2cSJim Jagielski { 37*b1cdbd2cSJim Jagielski if (outputRepository == null) 38*b1cdbd2cSJim Jagielski { 39*b1cdbd2cSJim Jagielski throw new NullPointerException(); 40*b1cdbd2cSJim Jagielski } 41*b1cdbd2cSJim Jagielski this.outputRepository = outputRepository; 42*b1cdbd2cSJim Jagielski } 43*b1cdbd2cSJim Jagielski generateName(final String namePrefix, final String mimeType)44*b1cdbd2cSJim Jagielski public String generateName(final String namePrefix, final String mimeType) 45*b1cdbd2cSJim Jagielski throws IOException 46*b1cdbd2cSJim Jagielski { 47*b1cdbd2cSJim Jagielski return generateName(namePrefix, mimeType, true); 48*b1cdbd2cSJim Jagielski } 49*b1cdbd2cSJim Jagielski generateStorageName(final String namePrefix, final String mimeType)50*b1cdbd2cSJim Jagielski public String generateStorageName(final String namePrefix, final String mimeType) 51*b1cdbd2cSJim Jagielski throws IOException 52*b1cdbd2cSJim Jagielski { 53*b1cdbd2cSJim Jagielski return generateName(namePrefix, mimeType, false); 54*b1cdbd2cSJim Jagielski } 55*b1cdbd2cSJim Jagielski 56*b1cdbd2cSJim Jagielski /** 57*b1cdbd2cSJim Jagielski * Generates a new, unique name for storing resources in the output repository. Assuming that proper synchronization 58*b1cdbd2cSJim Jagielski * has been applied, the generated name will be unique within that repository. 59*b1cdbd2cSJim Jagielski * 60*b1cdbd2cSJim Jagielski * @param namePrefix a user defined name for that resource. 61*b1cdbd2cSJim Jagielski * @param mimeType the mime type of the resource to be stored in the repository. 62*b1cdbd2cSJim Jagielski * @param isStream 63*b1cdbd2cSJim Jagielski * @return the generated, fully qualified name. 64*b1cdbd2cSJim Jagielski * @throws java.io.IOException 65*b1cdbd2cSJim Jagielski */ generateName(final String namePrefix, final String mimeType, final boolean isStream)66*b1cdbd2cSJim Jagielski private String generateName(final String namePrefix, final String mimeType, final boolean isStream) 67*b1cdbd2cSJim Jagielski throws IOException 68*b1cdbd2cSJim Jagielski { 69*b1cdbd2cSJim Jagielski final String name; 70*b1cdbd2cSJim Jagielski if (namePrefix != null) 71*b1cdbd2cSJim Jagielski { 72*b1cdbd2cSJim Jagielski name = namePrefix; 73*b1cdbd2cSJim Jagielski } 74*b1cdbd2cSJim Jagielski else 75*b1cdbd2cSJim Jagielski { 76*b1cdbd2cSJim Jagielski name = "file"; 77*b1cdbd2cSJim Jagielski } 78*b1cdbd2cSJim Jagielski 79*b1cdbd2cSJim Jagielski StringBuffer firstFileName = new StringBuffer(); 80*b1cdbd2cSJim Jagielski firstFileName.append(name); 81*b1cdbd2cSJim Jagielski final String suffix; 82*b1cdbd2cSJim Jagielski if (mimeType != null) 83*b1cdbd2cSJim Jagielski { 84*b1cdbd2cSJim Jagielski suffix = getSuffixForType(mimeType); 85*b1cdbd2cSJim Jagielski firstFileName.append('.'); 86*b1cdbd2cSJim Jagielski firstFileName.append(suffix); 87*b1cdbd2cSJim Jagielski } 88*b1cdbd2cSJim Jagielski else 89*b1cdbd2cSJim Jagielski { 90*b1cdbd2cSJim Jagielski suffix = null; 91*b1cdbd2cSJim Jagielski } 92*b1cdbd2cSJim Jagielski String newName = firstFileName.toString(); 93*b1cdbd2cSJim Jagielski boolean exists; 94*b1cdbd2cSJim Jagielski if (isStream) 95*b1cdbd2cSJim Jagielski { 96*b1cdbd2cSJim Jagielski exists = outputRepository.exists(newName); 97*b1cdbd2cSJim Jagielski } 98*b1cdbd2cSJim Jagielski else 99*b1cdbd2cSJim Jagielski { 100*b1cdbd2cSJim Jagielski exists = outputRepository.existsStorage(newName); 101*b1cdbd2cSJim Jagielski } 102*b1cdbd2cSJim Jagielski if (exists) 103*b1cdbd2cSJim Jagielski { 104*b1cdbd2cSJim Jagielski int counter = 0; 105*b1cdbd2cSJim Jagielski while (exists) 106*b1cdbd2cSJim Jagielski { 107*b1cdbd2cSJim Jagielski if (counter < 0) // wraparound should not happen.. 108*b1cdbd2cSJim Jagielski { 109*b1cdbd2cSJim Jagielski throw new IOException(); 110*b1cdbd2cSJim Jagielski } 111*b1cdbd2cSJim Jagielski firstFileName.delete(0, firstFileName.length()); 112*b1cdbd2cSJim Jagielski firstFileName.append(name); 113*b1cdbd2cSJim Jagielski firstFileName.append(counter); 114*b1cdbd2cSJim Jagielski if (suffix != null) 115*b1cdbd2cSJim Jagielski { 116*b1cdbd2cSJim Jagielski firstFileName.append('.'); 117*b1cdbd2cSJim Jagielski firstFileName.append(suffix); 118*b1cdbd2cSJim Jagielski } 119*b1cdbd2cSJim Jagielski newName = firstFileName.toString(); 120*b1cdbd2cSJim Jagielski if (isStream) 121*b1cdbd2cSJim Jagielski { 122*b1cdbd2cSJim Jagielski exists = outputRepository.exists(newName); 123*b1cdbd2cSJim Jagielski } 124*b1cdbd2cSJim Jagielski else 125*b1cdbd2cSJim Jagielski { 126*b1cdbd2cSJim Jagielski exists = outputRepository.existsStorage(newName); 127*b1cdbd2cSJim Jagielski } 128*b1cdbd2cSJim Jagielski counter++; 129*b1cdbd2cSJim Jagielski } 130*b1cdbd2cSJim Jagielski } 131*b1cdbd2cSJim Jagielski return newName; 132*b1cdbd2cSJim Jagielski } 133*b1cdbd2cSJim Jagielski getSuffixForType(final String mimeType)134*b1cdbd2cSJim Jagielski protected String getSuffixForType(final String mimeType) 135*b1cdbd2cSJim Jagielski { 136*b1cdbd2cSJim Jagielski if ("image/png".equals(mimeType)) 137*b1cdbd2cSJim Jagielski { 138*b1cdbd2cSJim Jagielski return "png"; 139*b1cdbd2cSJim Jagielski } 140*b1cdbd2cSJim Jagielski if ("image/jpeg".equals(mimeType)) 141*b1cdbd2cSJim Jagielski { 142*b1cdbd2cSJim Jagielski return "jpg"; 143*b1cdbd2cSJim Jagielski } 144*b1cdbd2cSJim Jagielski if ("image/gif".equals(mimeType)) 145*b1cdbd2cSJim Jagielski { 146*b1cdbd2cSJim Jagielski return "gif"; 147*b1cdbd2cSJim Jagielski } 148*b1cdbd2cSJim Jagielski 149*b1cdbd2cSJim Jagielski // todo ... use a flexible mapping ... 150*b1cdbd2cSJim Jagielski return "dat"; 151*b1cdbd2cSJim Jagielski } 152*b1cdbd2cSJim Jagielski } 153