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package org.apache.maven.plugins.shade.filter; |
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import org.apache.maven.artifact.Artifact; |
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import org.apache.maven.plugin.logging.Log; |
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import org.apache.maven.project.MavenProject; |
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import org.codehaus.plexus.util.IOUtil; |
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import org.vafer.jdependency.Clazz; |
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import org.vafer.jdependency.Clazzpath; |
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import org.vafer.jdependency.ClazzpathUnit; |
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import java.io.File; |
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import java.io.FileInputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.util.Collections; |
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import java.util.HashSet; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Set; |
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public class MinijarFilter |
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implements Filter |
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{ |
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private Log log; |
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private Set removable; |
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private int classesKept; |
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private int classesRemoved; |
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public MinijarFilter( MavenProject project, Log log ) |
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throws IOException |
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{ |
60 | 0 | this( project, log, Collections.<SimpleFilter>emptyList() ); |
61 | 0 | } |
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public MinijarFilter( MavenProject project, Log log, List<SimpleFilter> simpleFilters ) |
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throws IOException |
69 | 0 | { |
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71 | 0 | this.log = log; |
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73 | 0 | Clazzpath cp = new Clazzpath(); |
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75 | 0 | ClazzpathUnit artifactUnit = |
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cp.addClazzpathUnit( new FileInputStream( project.getArtifact().getFile() ), project.toString() ); |
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78 | 0 | for ( Iterator it = project.getArtifacts().iterator(); it.hasNext(); ) |
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{ |
80 | 0 | Artifact dependency = (Artifact) it.next(); |
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82 | 0 | InputStream is = null; |
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try |
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{ |
85 | 0 | is = new FileInputStream( dependency.getFile() ); |
86 | 0 | cp.addClazzpathUnit( is, dependency.toString() ); |
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} |
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finally |
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{ |
90 | 0 | IOUtil.close( is ); |
91 | 0 | } |
92 | 0 | } |
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|
94 | 0 | removable = cp.getClazzes(); |
95 | 0 | removePackages( artifactUnit ); |
96 | 0 | removable.removeAll( artifactUnit.getClazzes() ); |
97 | 0 | removable.removeAll( artifactUnit.getTransitiveDependencies() ); |
98 | 0 | removeSpecificallyIncludedClasses( project, simpleFilters == null |
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? Collections.<SimpleFilter>emptyList() |
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: simpleFilters ); |
101 | 0 | } |
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private void removePackages( ClazzpathUnit artifactUnit ) |
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{ |
105 | 0 | Set packageNames = new HashSet(); |
106 | 0 | removePackages( artifactUnit.getClazzes(), packageNames ); |
107 | 0 | removePackages( artifactUnit.getTransitiveDependencies(), packageNames ); |
108 | 0 | } |
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private void removePackages( Set clazzes, Set packageNames ) |
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{ |
112 | 0 | Iterator it = clazzes.iterator(); |
113 | 0 | while ( it.hasNext() ) |
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{ |
115 | 0 | Clazz clazz = (Clazz) it.next(); |
116 | 0 | String name = clazz.getName(); |
117 | 0 | while ( name.contains( "." ) ) |
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{ |
119 | 0 | name = name.substring( 0, name.lastIndexOf( '.' ) ); |
120 | 0 | if ( packageNames.add( name ) ) |
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{ |
122 | 0 | removable.remove( new Clazz( name + ".package-info" ) ); |
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} |
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} |
125 | 0 | } |
126 | 0 | } |
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private void removeSpecificallyIncludedClasses( MavenProject project, List<SimpleFilter> simpleFilters ) |
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throws IOException |
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{ |
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|
132 | 0 | Clazzpath checkCp = new Clazzpath(); |
133 | 0 | for ( Iterator it = project.getArtifacts().iterator(); it.hasNext(); ) |
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{ |
135 | 0 | Artifact dependency = (Artifact) it.next(); |
136 | 0 | File jar = dependency.getFile(); |
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138 | 0 | for ( Iterator<SimpleFilter> i = simpleFilters.iterator(); i.hasNext(); ) |
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{ |
140 | 0 | SimpleFilter simpleFilter = i.next(); |
141 | 0 | if ( simpleFilter.canFilter( jar ) ) |
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{ |
143 | 0 | InputStream is = null; |
144 | 0 | ClazzpathUnit depClazzpathUnit = null; |
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try |
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{ |
147 | 0 | is = new FileInputStream( dependency.getFile() ); |
148 | 0 | depClazzpathUnit = checkCp.addClazzpathUnit( is, dependency.toString() ); |
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} |
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finally |
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{ |
152 | 0 | IOUtil.close( is ); |
153 | 0 | } |
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|
155 | 0 | if ( depClazzpathUnit != null ) |
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{ |
157 | 0 | Iterator<Clazz> j = removable.iterator(); |
158 | 0 | while ( j.hasNext() ) |
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{ |
160 | 0 | Clazz clazz = j.next(); |
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162 | 0 | if ( depClazzpathUnit.getClazzes().contains( clazz ) && simpleFilter.isSpecificallyIncluded( |
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clazz.getName().replace( '.', '/' ) ) ) |
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{ |
165 | 0 | log.info( clazz.getName() + " not removed because it was specifically included" ); |
166 | 0 | j.remove(); |
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} |
168 | 0 | } |
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} |
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} |
171 | 0 | } |
172 | 0 | } |
173 | 0 | } |
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public boolean canFilter( File jar ) |
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{ |
177 | 0 | return true; |
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} |
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public boolean isFiltered( String classFile ) |
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{ |
182 | 0 | String className = classFile.replace( '/', '.' ).replaceFirst( "\\.class$", "" ); |
183 | 0 | Clazz clazz = new Clazz( className ); |
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|
185 | 0 | if ( removable.contains( clazz ) ) |
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{ |
187 | 0 | log.debug( "Removing " + className ); |
188 | 0 | classesRemoved += 1; |
189 | 0 | return true; |
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} |
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192 | 0 | classesKept += 1; |
193 | 0 | return false; |
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} |
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public void finished() |
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{ |
198 | 0 | int classes_total = classesRemoved + classesKept; |
199 | 0 | log.info( |
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"Minimized " + classes_total + " -> " + classesKept + " (" + (int) ( 100 * classesKept / classes_total ) |
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+ "%)" ); |
202 | 0 | } |
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} |