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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.osgi.maven;
import com.yahoo.slime.Cursor;
import com.yahoo.slime.Inspector;
import com.yahoo.slime.JsonDecoder;
import com.yahoo.slime.JsonFormat;
import com.yahoo.slime.Slime;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
/**
* Represents the bundles in a maven project and the classpath elements
* corresponding to code that would end up in the bundle.
*
* @author Tony Vaagenes
* @author bjorncs
*/
public class ProjectBundleClassPaths {
public static final String CLASSPATH_MAPPINGS_FILENAME = "bundle-plugin.bundle-classpath-mappings.json";
public final BundleClasspathMapping mainBundle;
public final List<BundleClasspathMapping> providedDependencies;
public ProjectBundleClassPaths(BundleClasspathMapping mainBundle,
List<BundleClasspathMapping> providedDependencies) {
this.mainBundle = mainBundle;
this.providedDependencies = providedDependencies;
}
public static void save(Path path, ProjectBundleClassPaths mappings) throws IOException {
Files.createDirectories(path.getParent());
try (OutputStream out = new BufferedOutputStream(Files.newOutputStream(path))) {
save(out, mappings);
}
}
static void save(OutputStream out, ProjectBundleClassPaths mappings) throws IOException {
Slime slime = new Slime();
Cursor rootCursor = slime.setObject();
Cursor mainBundleCursor = rootCursor.setObject("mainBundle");
BundleClasspathMapping.save(mainBundleCursor, mappings.mainBundle);
Cursor dependenciesCursor = rootCursor.setArray("providedDependencies");
mappings.providedDependencies
.forEach(d -> BundleClasspathMapping.save(dependenciesCursor.addObject(), d));
new JsonFormat(false).encode(out, slime);
}
public static ProjectBundleClassPaths load(Path path) throws IOException {
byte[] bytes = Files.readAllBytes(path);
return load(bytes);
}
static ProjectBundleClassPaths load(byte[] bytes) {
Slime slime = new Slime();
new JsonDecoder().decode(slime, bytes);
Inspector inspector = slime.get();
BundleClasspathMapping mainBundle = BundleClasspathMapping.load(inspector.field("mainBundle"));
Inspector dependenciesInspector = inspector.field("providedDependencies");
List<BundleClasspathMapping> providedDependencies = new ArrayList<>();
for (int i = 0; i < dependenciesInspector.entries(); i++) {
providedDependencies.add(BundleClasspathMapping.load(dependenciesInspector.entry(i)));
}
return new ProjectBundleClassPaths(mainBundle, providedDependencies);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ProjectBundleClassPaths that = (ProjectBundleClassPaths) o;
return Objects.equals(mainBundle, that.mainBundle) &&
Objects.equals(providedDependencies, that.providedDependencies);
}
@Override
public int hashCode() {
return Objects.hash(mainBundle, providedDependencies);
}
public static class BundleClasspathMapping {
public final String bundleSymbolicName;
public final List<String> classPathElements;
public BundleClasspathMapping(String bundleSymbolicName,
List<String> classPathElements) {
this.bundleSymbolicName = bundleSymbolicName;
this.classPathElements = classPathElements;
}
static void save(Cursor rootCursor, BundleClasspathMapping mapping) {
rootCursor.setString("bundleSymbolicName", mapping.bundleSymbolicName);
Cursor arrayCursor = rootCursor.setArray("classPathElements");
mapping.classPathElements.forEach(arrayCursor::addString);
}
static BundleClasspathMapping load(Inspector inspector) {
String bundleSymoblicName = inspector.field("bundleSymbolicName").asString();
Inspector elementsInspector = inspector.field("classPathElements");
List<String> classPathElements = new ArrayList<>();
for (int i = 0; i < elementsInspector.entries(); i++) {
classPathElements.add(elementsInspector.entry(i).asString());
}
return new BundleClasspathMapping(bundleSymoblicName, classPathElements);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
BundleClasspathMapping that = (BundleClasspathMapping) o;
return Objects.equals(bundleSymbolicName, that.bundleSymbolicName) &&
Objects.equals(classPathElements, that.classPathElements);
}
@Override
public int hashCode() {
return Objects.hash(bundleSymbolicName, classPathElements);
}
}
}
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