X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.slc.repo%2Fsrc%2Forg%2Fargeo%2Fslc%2Frepo%2Fosgi%2FSubArtifact.java;fp=org.argeo.slc.repo%2Fsrc%2Forg%2Fargeo%2Fslc%2Frepo%2Fosgi%2FSubArtifact.java;h=4c567f8cabeaa34283fbccfc67ebd999bd2599d3;hb=825d60c5348dbe3f5be25b0bccf7bdebfe694219;hp=0000000000000000000000000000000000000000;hpb=5e991fff5cba01858dcc5747a27e637325bc5c8e;p=gpl%2Fargeo-jcr.git

diff --git a/org.argeo.slc.repo/src/org/argeo/slc/repo/osgi/SubArtifact.java b/org.argeo.slc.repo/src/org/argeo/slc/repo/osgi/SubArtifact.java
new file mode 100644
index 0000000..4c567f8
--- /dev/null
+++ b/org.argeo.slc.repo/src/org/argeo/slc/repo/osgi/SubArtifact.java
@@ -0,0 +1,204 @@
+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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