summaryrefslogtreecommitdiffstats
path: root/openecomp-be/tools/snapshot-signature-plugin/src/main/java
diff options
context:
space:
mode:
Diffstat (limited to 'openecomp-be/tools/snapshot-signature-plugin/src/main/java')
-rw-r--r--openecomp-be/tools/snapshot-signature-plugin/src/main/java/org/openecomp/sdc/onboarding/SnapshotSignature.java194
1 files changed, 194 insertions, 0 deletions
diff --git a/openecomp-be/tools/snapshot-signature-plugin/src/main/java/org/openecomp/sdc/onboarding/SnapshotSignature.java b/openecomp-be/tools/snapshot-signature-plugin/src/main/java/org/openecomp/sdc/onboarding/SnapshotSignature.java
new file mode 100644
index 0000000000..f4a03ed47a
--- /dev/null
+++ b/openecomp-be/tools/snapshot-signature-plugin/src/main/java/org/openecomp/sdc/onboarding/SnapshotSignature.java
@@ -0,0 +1,194 @@
+/*
+ * Copyright © 2018 European Support Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on a "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.openecomp.sdc.onboarding;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardOpenOption;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ForkJoinPool;
+import java.util.concurrent.RecursiveTask;
+import java.util.stream.Collectors;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+import org.apache.maven.plugins.annotations.LifecyclePhase;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+import org.apache.maven.plugins.annotations.ResolutionScope;
+import org.apache.maven.project.MavenProject;
+
+@Mojo(name = "generate-signature", threadSafe = true, defaultPhase = LifecyclePhase.COMPILE,
+ requiresDependencyResolution = ResolutionScope.NONE)
+public class SnapshotSignature extends AbstractMojo {
+
+ public static final String JAVA_EXT = ".java";
+ public static final String UNICORN = "unicorn";
+ public static final String CHECKSUM = "checksum";
+ public static final String DOT = ".";
+ public static final String SHA1 = "sha1";
+ public static final String COLON = ":";
+ public static final String ANY_EXT = "*";
+ public static final String SNAPSHOT = "SNAPSHOT";
+ public static final String JAR = "jar";
+
+ @Parameter
+ private File mainSourceLocation;
+ @Parameter
+ private File mainResourceLocation;
+ @Parameter(defaultValue = "${project}")
+ private MavenProject project;
+
+ @Override
+ public void execute() throws MojoExecutionException, MojoFailureException {
+ if (!JAR.equals(project.getPackaging())) {
+ return;
+ }
+ init();
+ long resourceChecksum = getChecksum(mainResourceLocation, ANY_EXT);
+ long mainChecksum = getChecksum(mainSourceLocation, JAVA_EXT);
+ byte[] sourceChecksum = calculateChecksum(mainChecksum, resourceChecksum).getBytes();
+ generateSignature(sourceChecksum);
+ }
+
+ private void init() {
+ if (mainSourceLocation == null) {
+ mainSourceLocation = Paths.get(project.getBuild().getSourceDirectory()).toFile();
+ }
+ if (mainResourceLocation == null) {
+ mainResourceLocation = Paths.get(project.getBuild().getResources().get(0).getDirectory()).toFile();
+ }
+ }
+
+ private long getChecksum(File file, String fileType) {
+ try {
+ return readSources(file, fileType).hashCode();
+ } catch (IOException e) {
+ throw new UncheckedIOException(e);
+ }
+ }
+
+ private Map<String, List<String>> readSources(File file, String fileType) throws IOException {
+ Map<String, List<String>> source = new HashMap<>();
+ if (file.exists()) {
+ List<File> list = Files.walk(Paths.get(file.getAbsolutePath()))
+ .filter(JAVA_EXT.equals(fileType) ? this::isRegularJavaFile : Files::isRegularFile)
+ .map(Path::toFile).collect(Collectors.toList());
+ source.putAll(ForkJoinPool.commonPool()
+ .invoke(new FileReadTask(list.toArray(new File[0]), file.getAbsolutePath())));
+ }
+ return source;
+ }
+
+ private boolean isRegularJavaFile(Path path) {
+ File file = path.toFile();
+ return file.isFile() && file.getName().endsWith(JAVA_EXT);
+ }
+
+ private class FileReadTask extends RecursiveTask<Map<String, List<String>>> {
+
+ private Map<String, List<String>> store = new HashMap<>();
+ File[] files;
+ String pathPrefix;
+ private static final int MAX_FILES = 10;
+
+ FileReadTask(File[] files, String pathPrefix) {
+ this.files = files;
+ this.pathPrefix = pathPrefix;
+ }
+
+ private List<String> getData(File file) throws IOException {
+ List<String> coll = Files.readAllLines(file.toPath(), StandardCharsets.ISO_8859_1);
+ if (file.getAbsolutePath().contains(File.separator + "generated-sources" + File.separator)) {
+ Iterator<String> itr = coll.iterator();
+ while (itr.hasNext()) {
+ String s = itr.next();
+ if (s == null || s.trim().startsWith("/") || s.trim().startsWith("*")) {
+ itr.remove();
+ }
+ }
+ }
+ return coll;
+ }
+
+
+ @Override
+ protected Map<String, List<String>> compute() {
+ if (files.length > MAX_FILES) {
+ FileReadTask task1 = new FileReadTask(Arrays.copyOfRange(files, 0, files.length / 2), pathPrefix);
+ FileReadTask task2 =
+ new FileReadTask(Arrays.copyOfRange(files, files.length / 2, files.length), pathPrefix);
+ task1.fork();
+ task2.fork();
+ store.putAll(task1.join());
+ store.putAll(task2.join());
+ } else {
+ for (File toRead : files) {
+ try {
+ store.put(toRead.getAbsolutePath().substring(pathPrefix.length())
+ .replace(File.separatorChar, '.'), getData(toRead));
+ } catch (IOException e) {
+ throw new UncheckedIOException(e);
+ }
+ }
+ }
+
+ return store;
+ }
+ }
+
+ private void generateSignature(byte[] sourceChecksum) {
+ try {
+ Paths.get(project.getBuild().getOutputDirectory()).toFile().mkdirs();
+ Files.write(Paths.get(project.getBuild().getOutputDirectory(), UNICORN + DOT + CHECKSUM), sourceChecksum,
+ StandardOpenOption.CREATE);
+ } catch (IOException e) {
+ throw new UncheckedIOException(e);
+ }
+ }
+
+ private String calculateChecksum(long mainChecksum, long resourceChecksum) throws MojoExecutionException {
+ try {
+ return getSourceChecksum(mainChecksum + COLON + resourceChecksum, SHA1);
+ } catch (NoSuchAlgorithmException e) {
+ throw new MojoExecutionException(e.getMessage(), e);
+ }
+ }
+
+ private String getSourceChecksum(String data, String hashType) throws NoSuchAlgorithmException {
+ MessageDigest md = MessageDigest.getInstance(hashType);
+ md.update(data.getBytes());
+ byte[] hashBytes = md.digest();
+
+ StringBuilder buffer = new StringBuilder();
+ for (byte hashByte : hashBytes) {
+ buffer.append(Integer.toString((hashByte & 0xff) + 0x100, 16).substring(1));
+ }
+ return buffer.toString();
+ }
+}