| // Copyright 2004, 2005 The Apache Software Foundation |
| // |
| // 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 org.apache.tapestry.parse; |
| |
| import org.apache.hivemind.ApplicationRuntimeException; |
| import org.apache.hivemind.Location; |
| import org.apache.hivemind.util.ToStringBuilder; |
| import org.apache.tapestry.IMarkupWriter; |
| import org.apache.tapestry.IRender; |
| import org.apache.tapestry.IRequestCycle; |
| |
| /** |
| * Represents static text in the template that may be passed through to the client unchanged |
| * (except, perhaps, for the removal of some whitespace). |
| * |
| * @see TokenType#TEXT |
| * @author Howard Lewis Ship |
| * @since 3.0 |
| */ |
| |
| public class TextToken extends TemplateToken implements IRender |
| { |
| private char[] _templateData; |
| |
| private int _offset; |
| |
| private int _length; |
| |
| public TextToken(char[] templateData, int startIndex, int endIndex, Location location) |
| { |
| super(TokenType.TEXT, location); |
| |
| if (startIndex < 0 || endIndex < 0 || startIndex > templateData.length |
| || endIndex > templateData.length) |
| throw new ApplicationRuntimeException(ParseMessages.rangeError( |
| this, |
| templateData.length), this, getLocation(), null); |
| |
| _templateData = templateData; |
| |
| _offset = startIndex; |
| _length = endIndex - startIndex + 1; |
| } |
| |
| public void render(IMarkupWriter writer, IRequestCycle cycle) |
| { |
| if (_length == 0) |
| return; |
| |
| // At one time, we would check to see if the cycle was rewinding and |
| // only invoke printRaw() if it was. However, that slows down |
| // normal rendering (microscopically) and, with the new |
| // NullResponseWriter class, the "cost" of invoking cycle.isRewinding() |
| // is approximately the same as the "cost" of invoking writer.printRaw(). |
| |
| writer.printRaw(_templateData, _offset, _length); |
| } |
| |
| protected void extendDescription(ToStringBuilder builder) |
| { |
| builder.append("offset", _offset); |
| builder.append("length", _length); |
| } |
| |
| public String getTemplateDataAsString() |
| { |
| return new String(_templateData, _offset, _length); |
| } |
| |
| public int getLength() |
| { |
| return _length; |
| } |
| |
| public int getOffset() |
| { |
| return _offset; |
| } |
| } |