1 /** 2 * Copyright (c) 2001, Thai Open Source Software Center Ltd 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * Neither the name of the Thai Open Source Software Center Ltd nor 18 * the names of its contributors may be used to endorse or promote 19 * products derived from this software without specific prior written 20 * permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR 26 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 27 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 29 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 30 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 package org.relaxng.datatype.helpers; 35 36 import org.relaxng.datatype.*; 37 38 /** 39 * Dummy implementation of {@link DatatypeStreamingValidator}. 40 * 41 * <p> 42 * This implementation can be used as a quick hack when the performance 43 * of streaming validation is not important. And this implementation 44 * also shows you how to implement the DatatypeStreamingValidator interface. 45 * 46 * <p> 47 * Typical usage would be: 48 * <PRE>{@code 49 * class MyDatatype implements Datatype { 50 * .... 51 * public DatatypeStreamingValidator createStreamingValidator( ValidationContext context ) { 52 * return new StreamingValidatorImpl(this,context); 53 * } 54 * .... 55 * } 56 * }</PRE> 57 * 58 * @author <a href="mailto:kohsuke.kawaguchi@sun.com">Kohsuke KAWAGUCHI</a> 59 */ 60 public final class StreamingValidatorImpl implements DatatypeStreamingValidator { 61 62 /** This buffer accumulates characters. */ 63 private final StringBuffer buffer = new StringBuffer(); 64 65 /** Datatype obejct that creates this streaming validator. */ 66 private final Datatype baseType; 67 68 /** The current context. */ 69 private final ValidationContext context; 70 71 public void addCharacters( char[] buf, int start, int len ) { 72 // append characters to the current buffer. 73 buffer.append(buf,start,len); 74 } 75 76 public boolean isValid() { 77 return baseType.isValid(buffer.toString(),context); 78 } 79 80 public void checkValid() throws DatatypeException { 81 baseType.checkValid(buffer.toString(),context); 82 } 83 84 public StreamingValidatorImpl( Datatype baseType, ValidationContext context ) { 85 this.baseType = baseType; 86 this.context = context; 87 } 88 }