--- /dev/null
+package org.argeo.slc.repo.osgi;
+
+import java.io.File;
+import java.util.Map;
+
+import org.eclipse.aether.artifact.AbstractArtifact;
+import org.eclipse.aether.artifact.Artifact;
+
+/**
+ * An artifact whose identity is derived from another artifact. <em>Note:</em> Instances of this class are immutable and
+ * the exposed mutators return new objects rather than changing the current instance.
+ */
+final class SubArtifact
+ extends AbstractArtifact
+{
+
+ private final Artifact mainArtifact;
+
+ private final String classifier;
+
+ private final String extension;
+
+ private final File file;
+
+ private final Map<String, String> properties;
+
+ /**
+ * Creates a new sub artifact. The classifier and extension specified for this artifact may use the asterisk
+ * character "*" to refer to the corresponding property of the main artifact. For instance, the classifier
+ * "*-sources" can be used to refer to the source attachment of an artifact. Likewise, the extension "*.asc" can be
+ * used to refer to the GPG signature of an artifact.
+ *
+ * @param mainArtifact The artifact from which to derive the identity, must not be {@code null}.
+ * @param classifier The classifier for this artifact, may be {@code null} if none.
+ * @param extension The extension for this artifact, may be {@code null} if none.
+ */
+ public SubArtifact( Artifact mainArtifact, String classifier, String extension )
+ {
+ this( mainArtifact, classifier, extension, (File) null );
+ }
+
+ /**
+ * Creates a new sub artifact. The classifier and extension specified for this artifact may use the asterisk
+ * character "*" to refer to the corresponding property of the main artifact. For instance, the classifier
+ * "*-sources" can be used to refer to the source attachment of an artifact. Likewise, the extension "*.asc" can be
+ * used to refer to the GPG signature of an artifact.
+ *
+ * @param mainArtifact The artifact from which to derive the identity, must not be {@code null}.
+ * @param classifier The classifier for this artifact, may be {@code null} if none.
+ * @param extension The extension for this artifact, may be {@code null} if none.
+ * @param file The file for this artifact, may be {@code null} if unresolved.
+ */
+ public SubArtifact( Artifact mainArtifact, String classifier, String extension, File file )
+ {
+ this( mainArtifact, classifier, extension, null, file );
+ }
+
+ /**
+ * Creates a new sub artifact. The classifier and extension specified for this artifact may use the asterisk
+ * character "*" to refer to the corresponding property of the main artifact. For instance, the classifier
+ * "*-sources" can be used to refer to the source attachment of an artifact. Likewise, the extension "*.asc" can be
+ * used to refer to the GPG signature of an artifact.
+ *
+ * @param mainArtifact The artifact from which to derive the identity, must not be {@code null}.
+ * @param classifier The classifier for this artifact, may be {@code null} if none.
+ * @param extension The extension for this artifact, may be {@code null} if none.
+ * @param properties The properties of the artifact, may be {@code null}.
+ */
+ public SubArtifact( Artifact mainArtifact, String classifier, String extension, Map<String, String> properties )
+ {
+ this( mainArtifact, classifier, extension, properties, null );
+ }
+
+ /**
+ * Creates a new sub artifact. The classifier and extension specified for this artifact may use the asterisk
+ * character "*" to refer to the corresponding property of the main artifact. For instance, the classifier
+ * "*-sources" can be used to refer to the source attachment of an artifact. Likewise, the extension "*.asc" can be
+ * used to refer to the GPG signature of an artifact.
+ *
+ * @param mainArtifact The artifact from which to derive the identity, must not be {@code null}.
+ * @param classifier The classifier for this artifact, may be {@code null} if none.
+ * @param extension The extension for this artifact, may be {@code null} if none.
+ * @param properties The properties of the artifact, may be {@code null}.
+ * @param file The file for this artifact, may be {@code null} if unresolved.
+ */
+ public SubArtifact( Artifact mainArtifact, String classifier, String extension, Map<String, String> properties,
+ File file )
+ {
+ if ( mainArtifact == null )
+ {
+ throw new IllegalArgumentException( "no artifact specified" );
+ }
+ this.mainArtifact = mainArtifact;
+ this.classifier = classifier;
+ this.extension = extension;
+ this.file = file;
+ this.properties = copyProperties( properties );
+ }
+
+ private SubArtifact( Artifact mainArtifact, String classifier, String extension, File file,
+ Map<String, String> properties )
+ {
+ // NOTE: This constructor assumes immutability of the provided properties, for internal use only
+ this.mainArtifact = mainArtifact;
+ this.classifier = classifier;
+ this.extension = extension;
+ this.file = file;
+ this.properties = properties;
+ }
+
+ public String getGroupId()
+ {
+ return mainArtifact.getGroupId();
+ }
+
+ public String getArtifactId()
+ {
+ return mainArtifact.getArtifactId();
+ }
+
+ public String getVersion()
+ {
+ return mainArtifact.getVersion();
+ }
+
+ public String getBaseVersion()
+ {
+ return mainArtifact.getBaseVersion();
+ }
+
+ public boolean isSnapshot()
+ {
+ return mainArtifact.isSnapshot();
+ }
+
+ public String getClassifier()
+ {
+ return expand( classifier, mainArtifact.getClassifier() );
+ }
+
+ public String getExtension()
+ {
+ return expand( extension, mainArtifact.getExtension() );
+ }
+
+ public File getFile()
+ {
+ return file;
+ }
+
+ public Artifact setFile( File file )
+ {
+ if ( ( this.file == null ) ? file == null : this.file.equals( file ) )
+ {
+ return this;
+ }
+ return new SubArtifact( mainArtifact, classifier, extension, file, properties );
+ }
+
+ public Map<String, String> getProperties()
+ {
+ return properties;
+ }
+
+ public Artifact setProperties( Map<String, String> properties )
+ {
+ if ( this.properties.equals( properties ) || ( properties == null && this.properties.isEmpty() ) )
+ {
+ return this;
+ }
+ return new SubArtifact( mainArtifact, classifier, extension, properties, file );
+ }
+
+ private static String expand( String pattern, String replacement )
+ {
+ String result = "";
+ if ( pattern != null )
+ {
+ result = pattern.replace( "*", replacement );
+
+ if ( replacement.length() <= 0 )
+ {
+ if ( pattern.startsWith( "*" ) )
+ {
+ int i = 0;
+ for ( ; i < result.length(); i++ )
+ {
+ char c = result.charAt( i );
+ if ( c != '-' && c != '.' )
+ {
+ break;
+ }
+ }
+ result = result.substring( i );
+ }
+ if ( pattern.endsWith( "*" ) )
+ {
+ int i = result.length() - 1;
+ for ( ; i >= 0; i-- )
+ {
+ char c = result.charAt( i );
+ if ( c != '-' && c != '.' )
+ {
+ break;
+ }
+ }
+ result = result.substring( 0, i + 1 );
+ }
+ }
+ }
+ return result;
+ }
+
+}
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projects / gpl / argeo-slc.git / blobdiff