Support for wildcard paths in PropertiesLauncher

spring-boot-tools/spring-boot-loader/README.md

@@ -11,7 +11,7 @@ opposed to explicitly on the classpath). In the case of the
 those locations if you want more. The `PropertiesLauncher` looks in
 `lib/` by default, but you can add additional locations by setting an
 environment variable `LOADER_PATH`or `loader.path` in
-`application.properties` (colon-separated list of directories).
+`application.properties` (colon-separated list of directories or archives).
 
 > **Note:** The quickest way to build a compatible archive is to use the
 > [spring-boot-maven-plugin](../spring-boot-maven-plugin) or

spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/PropertiesLauncher.java

@@ -343,6 +343,12 @@ public class PropertiesLauncher extends Launcher {
 			Archive archive = new ExplodedArchive(file);
 			lib.add(archive);
 		}
+		Archive archive = getArchive(file);
+		if (archive != null) {
+			this.logger.info("Adding classpath entries from nested " + archive.getUrl()
+					+ root);
+			lib.add(archive);
+		}
 		Archive nested = getNestedArchive(root);
 		if (nested != null) {
 			this.logger.info("Adding classpath entries from nested " + nested.getUrl()
@@ -352,6 +358,14 @@ public class PropertiesLauncher extends Launcher {
 		return lib;
 	}
 
+	private Archive getArchive(File file) throws IOException {
+		String name = file.getName().toLowerCase();
+		if (name.endsWith(".jar") || name.endsWith(".zip")) {
+			return new JarFileArchive(file);
+		}
+		return null;
+	}
+
 	private Archive getNestedArchive(final String root) throws Exception {
 		Archive parent = createArchive();
 		if (root.startsWith("/") || parent.getUrl().equals(this.home.toURI().toURL())) {
@@ -401,9 +415,17 @@ public class PropertiesLauncher extends Launcher {
 
 	private String cleanupPath(String path) {
 		path = path.trim();
-		// Always a directory
-		if (!path.endsWith("/")) {
-			path = path + "/";
+		if (path.toLowerCase().endsWith(".jar") || path.toLowerCase().endsWith(".zip")) {
+			return path;
+		}
+		if (path.endsWith("/*")) {
+			path = path.substring(0, path.length() - 1);
+		}
+		else {
+			// It's a directory
+			if (!path.endsWith("/")) {
+				path = path + "/";
+			}
 		}
 		// No need for current dir path
 		if (path.startsWith("./")) {

spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/OutputCapture.java

+/*
+ * Copyright 2012-2013 the original author or authors.
+ *
+ * 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 an "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.springframework.boot.loader;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PrintStream;
+
+import org.junit.rules.TestRule;
+import org.junit.runner.Description;
+import org.junit.runners.model.Statement;
+
+/**
+ * Capture output from System.out and System.err.
+ * 
+ * @author Phillip Webb
+ */
+public class OutputCapture implements TestRule {
+
+	private CaptureOutputStream captureOut;
+
+	private CaptureOutputStream captureErr;
+
+	private ByteArrayOutputStream copy;
+
+	@Override
+	public Statement apply(final Statement base, Description description) {
+		return new Statement() {
+			@Override
+			public void evaluate() throws Throwable {
+				captureOutput();
+				try {
+					base.evaluate();
+				}
+				finally {
+					releaseOutput();
+				}
+			}
+		};
+	}
+
+	protected void captureOutput() {
+		this.copy = new ByteArrayOutputStream();
+		this.captureOut = new CaptureOutputStream(System.out, this.copy);
+		this.captureErr = new CaptureOutputStream(System.err, this.copy);
+		System.setOut(new PrintStream(this.captureOut));
+		System.setErr(new PrintStream(this.captureErr));
+	}
+
+	protected void releaseOutput() {
+		System.setOut(this.captureOut.getOriginal());
+		System.setErr(this.captureErr.getOriginal());
+		this.copy = null;
+	}
+
+	public void flush() {
+		try {
+			this.captureOut.flush();
+			this.captureErr.flush();
+		}
+		catch (IOException ex) {
+			// ignore
+		}
+	}
+
+	@Override
+	public String toString() {
+		flush();
+		return this.copy.toString();
+	}
+
+	private static class CaptureOutputStream extends OutputStream {
+
+		private final PrintStream original;
+
+		private final OutputStream copy;
+
+		public CaptureOutputStream(PrintStream original, OutputStream copy) {
+			this.original = original;
+			this.copy = copy;
+		}
+
+		@Override
+		public void write(int b) throws IOException {
+			this.copy.write(b);
+			this.original.write(b);
+			this.original.flush();
+		}
+
+		@Override
+		public void write(byte[] b) throws IOException {
+			write(b, 0, b.length);
+		}
+
+		@Override
+		public void write(byte[] b, int off, int len) throws IOException {
+			this.copy.write(b, off, len);
+			this.original.write(b, off, len);
+		}
+
+		public PrintStream getOriginal() {
+			return this.original;
+		}
+
+		@Override
+		public void flush() throws IOException {
+			this.copy.flush();
+			this.original.flush();
+		}
+	}
+
+}

spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/PropertiesLauncherTests.java

@@ -21,10 +21,12 @@ import java.io.IOException;
 
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 /**
  * Tests for {@link PropertiesLauncher}.
@@ -33,6 +35,9 @@ import static org.junit.Assert.assertEquals;
  */
 public class PropertiesLauncherTests {
 
+	@Rule
+	public OutputCapture output = new OutputCapture();
+
 	@Before
 	public void setup() throws IOException {
 		System.setProperty("loader.home",
@@ -65,13 +70,34 @@ public class PropertiesLauncherTests {
 
 	@Test
 	public void testUserSpecifiedConfigName() throws Exception {
-
 		System.setProperty("loader.config.name", "foo");
 		PropertiesLauncher launcher = new PropertiesLauncher();
 		assertEquals("my.Application", launcher.getMainClass());
 		assertEquals("[etc/]", ReflectionTestUtils.getField(launcher, "paths").toString());
 	}
 
+	@Test
+	public void testUserSpecifiedPath() throws Exception {
+		System.setProperty("loader.path", "jars/*");
+		System.setProperty("loader.main", "demo.Application");
+		PropertiesLauncher launcher = new PropertiesLauncher();
+		assertEquals("[jars/]", ReflectionTestUtils.getField(launcher, "paths")
+				.toString());
+		launcher.launch(new String[0]);
+		waitFor("Hello World");
+	}
+
+	@Test
+	public void testUserSpecifiedJarPath() throws Exception {
+		System.setProperty("loader.path", "jars/app.jar");
+		System.setProperty("loader.main", "demo.Application");
+		PropertiesLauncher launcher = new PropertiesLauncher();
+		assertEquals("[jars/app.jar]", ReflectionTestUtils.getField(launcher, "paths")
+				.toString());
+		launcher.launch(new String[0]);
+		waitFor("Hello World");
+	}
+
 	@Test
 	public void testUserSpecifiedConfigPathWins() throws Exception {
 
@@ -95,4 +121,15 @@ public class PropertiesLauncherTests {
 		assertEquals("demo.Application", System.getProperty("loader.main"));
 	}
 
+	private void waitFor(String value) throws Exception {
+		int count = 0;
+		boolean timeout = false;
+		while (!timeout && count < 100) {
+			count++;
+			Thread.sleep(50L);
+			timeout = this.output.toString().contains(value);
+		}
+		assertTrue("Timed out waiting for (" + value + ")", timeout);
+	}
+
 }