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- Added native Ant task for running CSSEmbed, allows for much faster builds - Replicates some of the functionality of CSSEmbed.java but in such a different style I didn't think reconciling them would necessarily be possible. CSSURLEmbedder.java - Count conversions correctly (uri -> datauri wasn't incrementing conversions counter) - Clean up some formatting around opening curly braces & "if ()" blocks - Wrap total conversion [INFO] line in a verbosity check so it doesn't always output
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| /* | ||
| * Copyright (c) 2009 Nicholas C. Zakas. All rights reserved. | ||
| * http://www.nczonline.net/ | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| */ | ||
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| package net.nczonline.web.cssembed; | ||
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| import org.apache.tools.ant.Project; | ||
| import org.apache.tools.ant.Task; | ||
| import org.apache.tools.ant.BuildException; | ||
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| import org.apache.tools.ant.types.Mapper; | ||
| import org.apache.tools.ant.types.Resource; | ||
| import org.apache.tools.ant.types.ResourceCollection; | ||
| import org.apache.tools.ant.types.resources.FileProvider; | ||
| import org.apache.tools.ant.types.resources.FileResource; | ||
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| import org.apache.tools.ant.util.FileNameMapper; | ||
| import org.apache.tools.ant.util.IdentityMapper; | ||
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| import java.io.*; | ||
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| import java.util.Vector; | ||
| import java.util.Iterator; | ||
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| //Define a custom Ant Task that calls into the CSS Embedder | ||
| public class CSSEmbedTask extends Task { | ||
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| //attribute options | ||
| private String charset = "UTF-8"; | ||
| private String root; | ||
| private boolean mhtml; | ||
| private String mhtmlRoot; | ||
| private boolean skipMissing; | ||
| private boolean verbose = false; | ||
| private int maxUriLength = 0; | ||
| private int maxImageSize = 0; | ||
| private File srcFile; | ||
| private File destFile; | ||
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| //support nested resource collections & mappers | ||
| private Mapper mapperElement = null; | ||
| private Vector rcs = new Vector(); | ||
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| //Simple Setters | ||
| public void setCharset(String charset) { | ||
| this.charset = charset; | ||
| } | ||
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| public void setRoot(String root) { | ||
| this.root = root; | ||
| } | ||
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| public void setMhtml(boolean mhtml) { | ||
| this.mhtml = mhtml; | ||
| } | ||
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| public void setMhtmlRoot(String mhtmlRoot) { | ||
| this.mhtmlRoot = mhtmlRoot; | ||
| } | ||
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| public void setSkipMissing(boolean skipMissing) { | ||
| this.skipMissing = skipMissing; | ||
| } | ||
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| public void setVerbose(boolean verbose) { | ||
| this.verbose = verbose; | ||
| } | ||
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| public void setMaxUriLength(int maxUriLength) { | ||
| this.maxUriLength = maxUriLength; | ||
| } | ||
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| public void setMaxImageSize(int maxImageSize) { | ||
| this.maxImageSize = maxImageSize; | ||
| } | ||
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| public void setSrcFile(File srcFile) { | ||
| this.srcFile = srcFile; | ||
| } | ||
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| public void setDestFile(File destFile) { | ||
| this.destFile = destFile; | ||
| } | ||
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| //More complicated setters for nested elements... | ||
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| //add a collection of resources to copy | ||
| public void add(ResourceCollection res) { | ||
| rcs.add(res); | ||
| } | ||
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| //mapper takes source files & converts them to dest files | ||
| public Mapper createMapper() throws BuildException { | ||
| if (mapperElement != null) { | ||
| throw new BuildException("Cannot define more than one mapper", getLocation()); | ||
| } | ||
| mapperElement = new Mapper(getProject()); | ||
| return mapperElement; | ||
| } | ||
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| //support multiple types of filename mappers being added | ||
| public void add(FileNameMapper fileNameMapper) { | ||
| createMapper().add(fileNameMapper); | ||
| } | ||
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| //returns the mapper to use based on nested elements, defaults to IdentityMapper | ||
| private FileNameMapper getMapper() { | ||
| FileNameMapper mapper = null; | ||
| if (mapperElement != null) { | ||
| mapper = mapperElement.getImplementation(); | ||
| } else { | ||
| mapper = new IdentityMapper(); | ||
| } | ||
| return mapper; | ||
| } | ||
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| //ensure that attributes are legit | ||
| protected void validateAttributes() throws BuildException { | ||
| //if there's no nested resource containers make sure that a srcFile/destFile are set | ||
| if(this.rcs == null || this.rcs.size() == 0) { | ||
| if (this.srcFile == null || !this.srcFile.exists()) { | ||
| throw new BuildException("Must specify an input file or at least one nested resource", getLocation()); | ||
| } | ||
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| if(this.destFile == null) { | ||
| throw new BuildException("Must specify an output file or at least one nested resource", getLocation()); | ||
| } | ||
| } | ||
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| if(this.mhtml && this.mhtmlRoot == null) { | ||
| throw new BuildException("Must specify mhtmlRoot in mhtml mode", getLocation()); | ||
| } | ||
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| if(this.mhtmlRoot != null && !this.mhtml) { | ||
| log("mhtmlRoot has no effect if mhtml mode is not activated", Project.MSG_WARN); | ||
| } | ||
| } | ||
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| //run the task | ||
| public void execute () throws BuildException { | ||
| validateAttributes(); | ||
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| //set options flags | ||
| int options = (this.mhtml) ? CSSURLEmbedder.MHTML_OPTION : CSSURLEmbedder.DATAURI_OPTION; | ||
| if(skipMissing) { | ||
| options = options | CSSURLEmbedder.SKIP_MISSING_OPTION; | ||
| } | ||
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| if(srcFile != null && srcFile.exists()) { | ||
| try { | ||
| embed(srcFile, destFile, options); | ||
| } catch(IOException ex) { | ||
| throw new BuildException(ex.getMessage(), ex); | ||
| } | ||
| } | ||
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| FileNameMapper mapper = getMapper(); | ||
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| for(Iterator it = this.rcs.iterator(); it.hasNext();) { | ||
| ResourceCollection rc = (ResourceCollection) it.next(); | ||
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| for(Iterator rcit = rc.iterator(); rcit.hasNext();) { | ||
| FileResource fr = (FileResource) rcit.next(); | ||
| File in = fr.getFile(); | ||
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| String[] mapped = mapper.mapFileName(in.getName()); | ||
| if (mapped != null && mapped.length > 0) { | ||
| for(int k = 0; k < mapped.length; k++) { | ||
| File out = getProject().resolveFile(in.getParent() + File.separator + mapped[k]); | ||
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| try { | ||
| embed(in, out, options); | ||
| } catch(IOException ex) { | ||
| throw new BuildException(ex.getMessage(), ex); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| private void embed(File input, File output, int options) throws IOException { | ||
| ByteArrayOutputStream bytes = new ByteArrayOutputStream(); | ||
| Reader in = new InputStreamReader(new FileInputStream(input), charset); | ||
| Writer out = new OutputStreamWriter(bytes, charset); | ||
| String pathRoot = root; | ||
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| if(pathRoot == null) { | ||
| pathRoot = input.getCanonicalPath(); | ||
| pathRoot = pathRoot.substring(0, pathRoot.lastIndexOf(File.separator)); | ||
| } | ||
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| if (!pathRoot.endsWith(File.separator)){ | ||
| pathRoot += File.separator; | ||
| } | ||
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| if(verbose) { | ||
| log("[INFO] embedding images from '" + input + "'"); | ||
| } | ||
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| CSSURLEmbedder embedder = new CSSURLEmbedder(in, options, verbose, maxUriLength, maxImageSize); | ||
|
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| if(mhtml) { | ||
| embedder.setMHTMLRoot(mhtmlRoot); | ||
| embedder.setFilename(output.getName()); | ||
| } | ||
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| embedder.embedImages(out, pathRoot); | ||
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| in.close(); | ||
| out.close(); | ||
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| if(bytes.size() > 0) { | ||
| if(verbose) { | ||
| log("[INFO] Writing to file: " + output); | ||
| } | ||
|
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| bytes.writeTo(new FileOutputStream(output)); | ||
| } | ||
| } | ||
| } |
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