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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
LocationRenderStrategy.java | 91.7% | 97.4% | 100% | 96.3% |
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// Copyright 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.describe;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.LineNumberReader;
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import java.io.Reader;
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import java.net.URL;
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import org.apache.hivemind.Location;
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import org.apache.tapestry.IMarkupWriter;
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import org.apache.tapestry.IRequestCycle;
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/**
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* Adapter for displaying {@link org.apache.hivemind.Location} objects as HTML. This may
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* include showing the content of the {@link org.apache.hivemind.Resource}, with the line indicated
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* in the Location highlighted.
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*
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* @author Howard M. Lewis Ship
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* @since 4.0
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*/
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public class LocationRenderStrategy implements RenderStrategy |
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{ |
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/**
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* Lines before and after the actual location to display.
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*/
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private static final int RANGE = 5; |
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public void renderObject(Object object, IMarkupWriter writer, IRequestCycle cycle) |
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{ |
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Location l = (Location) object; |
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// Always print out the location as a string.
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writer.print(l.toString()); |
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URL url = l.getResource().getResourceURL(); |
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if (url == null) |
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return;
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writeResourceContent(writer, url, l.getLineNumber()); |
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} |
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private void writeResourceContent(IMarkupWriter writer, URL url, int lineNumber) |
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{ |
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LineNumberReader reader = null;
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try
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{ |
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reader = new LineNumberReader(new BufferedReader( |
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new InputStreamReader(url.openStream())));
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writer.beginEmpty("br");
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writer.begin("table");
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writer.attribute("class", "location-content"); |
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while (true) |
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{ |
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String line = reader.readLine(); |
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if (line == null) |
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break;
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int currentLine = reader.getLineNumber();
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if (currentLine > lineNumber + RANGE)
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break;
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if (currentLine < lineNumber - RANGE)
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continue;
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writer.begin("tr");
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if (currentLine == lineNumber)
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writer.attribute("class", "target-line"); |
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writer.begin("td");
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writer.attribute("class", "line-number"); |
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writer.print(currentLine); |
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writer.end(); |
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writer.begin("td");
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writer.print(line); |
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writer.end("tr");
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writer.println(); |
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} |
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reader.close(); |
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reader = null;
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} |
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catch (Exception ex)
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{ |
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// Ignore it.
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} |
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finally
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{ |
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writer.end("table");
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close(reader); |
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} |
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} |
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private void close(Reader reader) |
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{ |
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119 | 22 |
try
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{ |
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if (reader != null) |
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reader.close(); |
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} |
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catch (IOException ex)
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{ |
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// Ignore
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} |
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} |
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} |
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