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Posted to dev@tomcat.apache.org by ma...@apache.org on 2020/01/13 12:50:45 UTC
[tomcat-jakartaee-migration] 01/01: Initial import
This is an automated email from the ASF dual-hosted git repository.
markt pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/tomcat-jakartaee-migration.git
commit 749b6e6483a970d7afa5234a58ba7edcdadc07af
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Mon Jan 13 12:49:49 2020 +0000
Initial import
---
.gitignore | 4 +
LICENSE | 177 +++++++++++++++++++++
NOTICE | 5 +
.../apache/tomcat/jakartaee/ClassConverter.java | 48 ++++++
.../org/apache/tomcat/jakartaee/Converter.java | 12 ++
.../org/apache/tomcat/jakartaee/Migration.java | 147 +++++++++++++++++
.../org/apache/tomcat/jakartaee/NoOpConverter.java | 24 +++
.../tomcat/jakartaee/NonClosingInputStream.java | 68 ++++++++
.../tomcat/jakartaee/NonClosingOutputStream.java | 44 +++++
.../org/apache/tomcat/jakartaee/TextConverter.java | 74 +++++++++
.../java/org/apache/tomcat/jakartaee/Util.java | 31 ++++
11 files changed, 634 insertions(+)
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..107422a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.classpath
+.project
+.settings
+bin
\ No newline at end of file
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f433b1a
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,177 @@
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
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+ "Licensor" shall mean the copyright owner or entity authorized by
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+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
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+ designated in writing by the copyright owner as "Not a Contribution."
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+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
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+ Work and such Derivative Works in Source or Object form.
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+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
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+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
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+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
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+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
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+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
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+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
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+ whether in tort (including negligence), contract, or otherwise,
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diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..2970a72
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,5 @@
+Apache Tomcat migration tool for Jakarta EE
+Copyright 2020 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (https://www.apache.org/).
\ No newline at end of file
diff --git a/src/main/java/org/apache/tomcat/jakartaee/ClassConverter.java b/src/main/java/org/apache/tomcat/jakartaee/ClassConverter.java
new file mode 100644
index 0000000..8a2eaf8
--- /dev/null
+++ b/src/main/java/org/apache/tomcat/jakartaee/ClassConverter.java
@@ -0,0 +1,48 @@
+package org.apache.tomcat.jakartaee;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import org.apache.bcel.classfile.ClassParser;
+import org.apache.bcel.classfile.Constant;
+import org.apache.bcel.classfile.ConstantUtf8;
+import org.apache.bcel.classfile.JavaClass;
+
+public class ClassConverter implements Converter {
+
+ @Override
+ public boolean accpets(String filename) {
+ String extension = Util.getExtension(filename);
+ if (extension == null || extension.length() == 0) {
+ return false;
+ }
+
+ if ("class".equals(extension)) {
+ return true;
+ }
+
+ return false;
+ }
+
+
+ @Override
+ public void convert(InputStream src, OutputStream dest) throws IOException {
+
+ ClassParser parser = new ClassParser(src, "unknown");
+ JavaClass javaClass = parser.parse();
+
+ // Loop through constant pool
+ Constant[] constantPool = javaClass.getConstantPool().getConstantPool();
+ for (short i = 0; i < constantPool.length; i++) {
+ if (constantPool[i] instanceof ConstantUtf8) {
+ ConstantUtf8 c = (ConstantUtf8) constantPool[i];
+ String str = c.getBytes();
+ c = new ConstantUtf8(Util.convert(str));
+ constantPool[i] = c;
+ }
+ }
+
+ javaClass.dump(dest);
+ }
+}
diff --git a/src/main/java/org/apache/tomcat/jakartaee/Converter.java b/src/main/java/org/apache/tomcat/jakartaee/Converter.java
new file mode 100644
index 0000000..8346b4c
--- /dev/null
+++ b/src/main/java/org/apache/tomcat/jakartaee/Converter.java
@@ -0,0 +1,12 @@
+package org.apache.tomcat.jakartaee;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public interface Converter {
+
+ boolean accpets(String filename);
+
+ void convert(InputStream src, OutputStream dest) throws IOException;
+}
diff --git a/src/main/java/org/apache/tomcat/jakartaee/Migration.java b/src/main/java/org/apache/tomcat/jakartaee/Migration.java
new file mode 100644
index 0000000..80b1721
--- /dev/null
+++ b/src/main/java/org/apache/tomcat/jakartaee/Migration.java
@@ -0,0 +1,147 @@
+package org.apache.tomcat.jakartaee;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import java.util.jar.JarInputStream;
+import java.util.jar.JarOutputStream;
+import java.util.jar.Manifest;
+
+public class Migration {
+
+ private File source;
+ private File destination;
+ private final List<Converter> converters;
+
+ public Migration() {
+ // Initialise the converters
+ converters = new ArrayList<>();
+
+ converters.add(new TextConverter());
+ converters.add(new ClassConverter());
+
+ // Final converter is the NoOpConverter
+ converters.add(new NoOpConverter());
+ }
+
+
+ public void setSource(File source) {
+ if (!source.canRead()) {
+ // TODO i18n
+ throw new IllegalArgumentException();
+ }
+ this.source = source;
+ }
+
+
+ public void setDestination(File destination) {
+ // TODO validate
+ this.destination = destination;
+ }
+
+
+ public boolean execute() throws IOException {
+ // TODO validate arguments
+
+ if (source.isDirectory()) {
+ migrateDirectory(source, destination);
+ } else {
+ // Single file
+ migrateFile(source, destination);
+ }
+ return false;
+ }
+
+
+ private void migrateDirectory(File src, File dest) throws IOException {
+ String[] files = src.list();
+ for (String file : files) {
+ migrateFile(new File(src, file), new File(dest, file));
+ }
+ }
+
+
+ private void migrateFile(File src, File dest) throws IOException {
+ try (InputStream is = new FileInputStream(src);
+ OutputStream os = new FileOutputStream(dest)) {
+ migrateStream(src.getName(), is, os);
+ }
+ }
+
+
+ private void migrateArchive(InputStream src, OutputStream dest) throws IOException {
+ try (JarInputStream jarIs = new JarInputStream(new NonClosingInputStream(src));
+ JarOutputStream jarOs = new JarOutputStream(new NonClosingOutputStream(dest))) {
+ Manifest manifest = jarIs.getManifest();
+ if (manifest != null) {
+ JarEntry manifestEntry = new JarEntry(JarFile.MANIFEST_NAME);
+ jarOs.putNextEntry(manifestEntry);
+ manifest.write(jarOs);
+ }
+ JarEntry jarEntry;
+ while ((jarEntry = jarIs.getNextJarEntry()) != null) {
+ String sourceName = jarEntry.getName();
+ System.out.println("Migrating JarEntry [" + sourceName + "]");
+ String destName = Util.convert(sourceName);
+ JarEntry destEntry = new JarEntry(destName);
+ jarOs.putNextEntry(destEntry);
+ migrateStream(destEntry.getName(), jarIs, jarOs);
+ }
+ }
+ }
+
+
+ private void migrateStream(String name, InputStream src, OutputStream dest) throws IOException {
+ System.out.println("Migrating stream [" + name + "]");
+ if (isArchive(name)) {
+ migrateArchive(src, dest);
+ } else {
+ for (Converter converter : converters) {
+ if (converter.accpets(name)) {
+ converter.convert(src, dest);
+ break;
+ }
+ }
+ }
+ }
+
+
+ public static void main(String[] args) {
+ if (args.length != 2) {
+ usage();
+ System.exit(1);
+ }
+ Migration migration = new Migration();
+ migration.setSource(new File(args[0]));
+ migration.setDestination(new File(args[1]));
+ boolean result = false;
+ try {
+ result = migration.execute();
+ } catch (IOException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+
+ // Signal caller that migration failed
+ if (!result) {
+ System.exit(1);
+ }
+ }
+
+
+ private static void usage() {
+ System.out.println("Usage: Migration <source> <destination>");
+ }
+
+
+ private static boolean isArchive(String fileName) {
+ return fileName.endsWith(".jar") || fileName.endsWith(".war") || fileName.endsWith(".zip");
+ }
+}
diff --git a/src/main/java/org/apache/tomcat/jakartaee/NoOpConverter.java b/src/main/java/org/apache/tomcat/jakartaee/NoOpConverter.java
new file mode 100644
index 0000000..1e25491
--- /dev/null
+++ b/src/main/java/org/apache/tomcat/jakartaee/NoOpConverter.java
@@ -0,0 +1,24 @@
+package org.apache.tomcat.jakartaee;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+public class NoOpConverter implements Converter {
+
+ @Override
+ public boolean accpets(String filename) {
+ // Accepts everything
+ return true;
+ }
+
+ @Override
+ public void convert(InputStream src, OutputStream dest) throws IOException {
+ // This simply copies the source to the destination
+ byte[] buf = new byte[8192];
+ int numRead;
+ while ((numRead = src.read(buf)) >= 0) {
+ dest.write(buf, 0, numRead);
+ }
+ }
+}
diff --git a/src/main/java/org/apache/tomcat/jakartaee/NonClosingInputStream.java b/src/main/java/org/apache/tomcat/jakartaee/NonClosingInputStream.java
new file mode 100644
index 0000000..1625c6c
--- /dev/null
+++ b/src/main/java/org/apache/tomcat/jakartaee/NonClosingInputStream.java
@@ -0,0 +1,68 @@
+package org.apache.tomcat.jakartaee;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+public class NonClosingInputStream extends InputStream {
+
+ private InputStream wrapped;
+
+
+ public NonClosingInputStream(InputStream wrapped) {
+ this.wrapped = wrapped;
+ }
+
+
+ @Override
+ public int read() throws IOException {
+ return wrapped.read();
+ }
+
+
+ @Override
+ public int read(byte[] b) throws IOException {
+ return wrapped.read(b);
+ }
+
+
+ @Override
+ public int read(byte[] b, int off, int len) throws IOException {
+ return wrapped.read(b, off, len);
+ }
+
+
+ @Override
+ public long skip(long n) throws IOException {
+ return wrapped.skip(n);
+ }
+
+
+ @Override
+ public int available() throws IOException {
+ return wrapped.available();
+ }
+
+
+ @Override
+ public void close() throws IOException {
+ // NO-OP
+ }
+
+
+ @Override
+ public synchronized void mark(int readlimit) {
+ wrapped.mark(readlimit);
+ }
+
+
+ @Override
+ public synchronized void reset() throws IOException {
+ wrapped.reset();
+ }
+
+
+ @Override
+ public boolean markSupported() {
+ return wrapped.markSupported();
+ }
+}
diff --git a/src/main/java/org/apache/tomcat/jakartaee/NonClosingOutputStream.java b/src/main/java/org/apache/tomcat/jakartaee/NonClosingOutputStream.java
new file mode 100644
index 0000000..1d72659
--- /dev/null
+++ b/src/main/java/org/apache/tomcat/jakartaee/NonClosingOutputStream.java
@@ -0,0 +1,44 @@
+package org.apache.tomcat.jakartaee;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class NonClosingOutputStream extends OutputStream {
+
+ private OutputStream wrapped;
+
+
+ public NonClosingOutputStream(OutputStream wrapped) {
+ this.wrapped = wrapped;
+ }
+
+
+ @Override
+ public void write(int b) throws IOException {
+ wrapped.write(b);
+ }
+
+
+ @Override
+ public void write(byte[] b) throws IOException {
+ wrapped.write(b);
+ }
+
+
+ @Override
+ public void write(byte[] b, int off, int len) throws IOException {
+ wrapped.write(b, off, len);
+ }
+
+
+ @Override
+ public void flush() throws IOException {
+ wrapped.flush();
+ }
+
+
+ @Override
+ public void close() throws IOException {
+ // NO-OP
+ }
+}
diff --git a/src/main/java/org/apache/tomcat/jakartaee/TextConverter.java b/src/main/java/org/apache/tomcat/jakartaee/TextConverter.java
new file mode 100644
index 0000000..60695c2
--- /dev/null
+++ b/src/main/java/org/apache/tomcat/jakartaee/TextConverter.java
@@ -0,0 +1,74 @@
+package org.apache.tomcat.jakartaee;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+
+public class TextConverter implements Converter {
+
+ private static final List<String> supportedExtensions;
+
+ static {
+ supportedExtensions = new ArrayList<>();
+ supportedExtensions.add("jsp");
+ supportedExtensions.add("jspx");
+ supportedExtensions.add("tag");
+ supportedExtensions.add("tagx");
+ supportedExtensions.add("tld");
+ supportedExtensions.add("txt");
+ supportedExtensions.add("xml");
+ }
+
+
+ @Override
+ public boolean accpets(String filename) {
+ String extension = Util.getExtension(filename);
+ if (extension == null || extension.length() == 0) {
+ return false;
+ }
+
+ if (supportedExtensions.contains(extension)) {
+ return true;
+ }
+
+ return false;
+ }
+
+
+ /*
+ * This is a bit of a hack so the same Pattern can be used for text files as
+ * for Strings in class files. An approach that worked directly on the
+ * streams would be more efficient - but also require significantly more
+ * code. Since the conversion process is intended to be a one-time process,
+ * this implementation opts for simplicity of code over efficiency of
+ * execution.
+ */
+ @Override
+ public void convert(InputStream src, OutputStream dest) throws IOException {
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ flow(src, baos);
+
+ String srcString = new String(baos.toByteArray(), StandardCharsets.ISO_8859_1);
+
+ String destString = Util.convert(srcString);
+
+ ByteArrayInputStream bais = new ByteArrayInputStream(destString.getBytes(StandardCharsets.ISO_8859_1));
+ flow (bais, dest);
+ }
+
+
+ private static void flow(InputStream is, OutputStream os) throws IOException {
+ byte[] buf = new byte[8192];
+ int numRead;
+ while ( (numRead = is.read(buf) ) >= 0) {
+ if (os != null) {
+ os.write(buf, 0, numRead);
+ }
+ }
+ }
+}
diff --git a/src/main/java/org/apache/tomcat/jakartaee/Util.java b/src/main/java/org/apache/tomcat/jakartaee/Util.java
new file mode 100644
index 0000000..b8f86a0
--- /dev/null
+++ b/src/main/java/org/apache/tomcat/jakartaee/Util.java
@@ -0,0 +1,31 @@
+package org.apache.tomcat.jakartaee;
+
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class Util {
+
+ private static Pattern PATTERN = Pattern.compile(
+ "javax([/\\.](annotation|ejb|el|mail|persistence|security[/\\.]auth[/\\.]message|servlet|transaction|websocket))");
+
+ public static String getExtension(String filename) {
+ // Extract the extension
+ int lastPeriod = filename.lastIndexOf(".");
+ if (lastPeriod == -1) {
+ return null;
+ }
+ return filename.substring(lastPeriod + 1).toLowerCase(Locale.ENGLISH);
+ }
+
+
+ public static String convert(String name) {
+ Matcher m = PATTERN.matcher(name);
+ return m.replaceAll("jakarta$1");
+ }
+
+
+ private Util() {
+ // Hide default constructor. Utility class.
+ }
+}
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