394053: services provisioned by puppet should be discoverable remotelyrefs/changes/43/8843/2

Change-Id: Ie1e49d10adf0567610e6d831745f5c49907b533b
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=394053

3 files changed, 148 insertions, 1 deletions

diff --git a/org.eclipse.mylyn.commons.sdk.util/META-INF/MANIFEST.MF b/org.eclipse.mylyn.commons.sdk.util/META-INF/MANIFEST.MF
index 96aa3ba..afd5ed1 100644
--- a/org.eclipse.mylyn.commons.sdk.util/META-INF/MANIFEST.MF
+++ b/org.eclipse.mylyn.commons.sdk.util/META-INF/MANIFEST.MF
@@ -12,6 +12,7 @@ Require-Bundle: org.junit,
  org.eclipse.ui,
  org.eclipse.mylyn.commons.core,
  org.eclipse.mylyn.commons.repositories.core,
- org.eclipse.mylyn.commons.net
+ org.eclipse.mylyn.commons.net,
+ com.google.gson;bundle-version="2.1.0"
 Export-Package: org.eclipse.mylyn.commons.sdk.util;x-internal:=true
 Bundle-Vendor: Eclipse Mylyn
diff --git a/org.eclipse.mylyn.commons.sdk.util/src/org/eclipse/mylyn/commons/sdk/util/FixtureConfiguration.java b/org.eclipse.mylyn.commons.sdk.util/src/org/eclipse/mylyn/commons/sdk/util/FixtureConfiguration.java
new file mode 100644
index 0000000..47a7cc8
--- a/dev/null
+++ b/org.eclipse.mylyn.commons.sdk.util/src/org/eclipse/mylyn/commons/sdk/util/FixtureConfiguration.java
@@ -0,0 +1,70 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Tasktop Technologies and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Tasktop Technologies - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.mylyn.commons.sdk.util;
+
+import java.util.Map;
+
+/**
+ * @author Steffen Pingel
+ */
+public class FixtureConfiguration {
+
+	String type;
+
+	String url;
+
+	String version;
+
+	String info;
+
+	Map<String, String> properties;
+
+	public FixtureConfiguration() {
+	}
+
+	public String getType() {
+		return type;
+	}
+
+	public void setType(String type) {
+		this.type = type;
+	}
+
+	public String getUrl() {
+		return url;
+	}
+
+	public void setUrl(String url) {
+		this.url = url;
+	}
+
+	public String getVersion() {
+		return version;
+	}
+
+	public void setVersion(String version) {
+		this.version = version;
+	}
+
+	public String getInfo() {
+		return info;
+	}
+
+	public void setInfo(String info) {
+		this.info = info;
+	}
+
+	public Map<String, String> getProperties() {
+		return properties;
+	}
+
+}
diff --git a/org.eclipse.mylyn.commons.sdk.util/src/org/eclipse/mylyn/commons/sdk/util/TestConfiguration.java b/org.eclipse.mylyn.commons.sdk.util/src/org/eclipse/mylyn/commons/sdk/util/TestConfiguration.java
index 3cd36a9..b34a0f0 100644
--- a/org.eclipse.mylyn.commons.sdk.util/src/org/eclipse/mylyn/commons/sdk/util/TestConfiguration.java
+++ b/org.eclipse.mylyn.commons.sdk.util/src/org/eclipse/mylyn/commons/sdk/util/TestConfiguration.java
@@ -11,15 +11,30 @@
 
 package org.eclipse.mylyn.commons.sdk.util;
 
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.lang.reflect.Constructor;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.EnumSet;
+import java.util.List;
 
 import org.eclipse.core.runtime.Assert;
 
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+
 /**
  * @author Steffen Pingel
  */
 public class TestConfiguration {
 
+	private static final String URL_SERVICES_LOCALHOST = "http://localhost:2080";
+
+	private static final String URL_SERVICES_DEFAULT = "http://mylyn.org";
+
 	public enum TestKind {
 		UNIT, COMPONENT, INTEGRATION, SYSTEM
 	};
@@ -97,4 +112,65 @@ public class TestConfiguration {
 		this.localOnly = localOnly;
 	}
 
+	public <T> List<T> discover(Class<T> clazz, String fixtureType) {
+		List<T> fixtures = discover(URL_SERVICES_LOCALHOST, clazz, fixtureType);
+		if (fixtures != null) {
+			return fixtures;
+		}
+
+		fixtures = discover(URL_SERVICES_LOCALHOST, clazz, fixtureType);
+		if (fixtures != null) {
+			if (isDefaultOnly()) {
+				return Collections.singletonList(fixtures.get(0));
+			} else {
+				return fixtures;
+			}
+		}
+		return fixtures;
+	}
+
+	public static <T> List<T> discover(String url, Class<T> clazz, String fixtureType) {
+		Assert.isNotNull(fixtureType);
+		List<FixtureConfiguration> configurations = getConfigurations(url + "/cgi-bin/services");
+		if (configurations != null) {
+			for (FixtureConfiguration configuration : configurations) {
+				configuration.setUrl(url + configuration.getUrl());
+			}
+			return loadFixtures(configurations, clazz, fixtureType);
+		}
+		return Collections.emptyList();
+	}
+
+	private static <T> List<T> loadFixtures(List<FixtureConfiguration> configurations, Class<T> clazz,
+			String fixtureType) {
+		List<T> result = new ArrayList<T>();
+		for (FixtureConfiguration configuration : configurations) {
+			if (fixtureType.equals(configuration.getType())) {
+				try {
+					Constructor<T> constructor = clazz.getConstructor(FixtureConfiguration.class);
+					result.add(constructor.newInstance(configuration));
+				} catch (Exception e) {
+					throw new RuntimeException("Unexpected error creating test fixture", e);
+				}
+			}
+		}
+		return result;
+	}
+
+	private static List<FixtureConfiguration> getConfigurations(String url) {
+		try {
+			URLConnection connection = new URL(url).openConnection();
+			InputStreamReader in = new InputStreamReader(connection.getInputStream());
+			try {
+				TypeToken<List<FixtureConfiguration>> type = new TypeToken<List<FixtureConfiguration>>() {
+				};
+				return new Gson().fromJson(in, type.getType());
+			} finally {
+				in.close();
+			}
+		} catch (IOException e) {
+			return null;
+		}
+	}
+
 }