Add support for getting milestones used in a repository

This will be used in the query dialog to search for
issues that are in a selected milestone.

Change-Id: I54d1e490c554a26bdd7cef9a1b458d00bca443ca
Signed-off-by: Kevin Sawicki <kevin@github.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>

2 files changed, 72 insertions, 3 deletions

diff --git a/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/IGitHubConstants.java b/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/IGitHubConstants.java
index d21984b3..1d02cc4a 100644
--- a/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/IGitHubConstants.java
+++ b/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/IGitHubConstants.java
@@ -11,9 +11,7 @@
 package org.eclipse.mylyn.github.internal;
 
 /**
- * GitHub constants.
- *
- * @author Kevin Sawicki (kevin@github.com)
+ * GitHub constants
  */
 public interface IGitHubConstants {
 
@@ -38,6 +36,11 @@ public interface IGitHubConstants {
 	String SEGMENT_LABELS = "/labels"; //$NON-NLS-1$
 
 	/**
+	 * SEGMENT_MILESTONES
+	 */
+	String SEGMENT_MILESTONES = "/milestones"; //$NON-NLS-1$
+
+	/**
 	 * SUFFIX_JSON
 	 */
 	String SUFFIX_JSON = ".json"; //$NON-NLS-1$
diff --git a/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/MilestoneService.java b/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/MilestoneService.java
new file mode 100644
index 00000000..b9149a2b
--- /dev/null
+++ b/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/MilestoneService.java
@@ -0,0 +1,66 @@
+/*******************************************************************************
+ *  Copyright (c) 2011 GitHub Inc.
+ *  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:
+ *    Kevin Sawicki (GitHub Inc.) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.mylyn.github.internal;
+
+import com.google.gson.reflect.TypeToken;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.core.runtime.Assert;
+
+/**
+ * Milestone service class for listing the {@link Milestone} objects in use by a
+ * repository and user accessed via a {@link GitHubClient}.
+ */
+public class MilestoneService {
+
+	private GitHubClient client;
+
+	/**
+	 * Create milestone service
+	 * 
+	 * @param client
+	 *            cannot be null
+	 */
+	public MilestoneService(GitHubClient client) {
+		Assert.isNotNull(client, "Client cannot be null"); //$NON-NLS-1$
+		this.client = client;
+	}
+
+	/**
+	 * Get milestones
+	 * 
+	 * @param user
+	 * @param repository
+	 * @param state
+	 * @return list of milestones
+	 * @throws IOException
+	 */
+	public List<Milestone> getMilestones(String user, String repository,
+			String state) throws IOException {
+		StringBuilder uri = new StringBuilder(IGitHubConstants.SEGMENT_REPOS);
+		uri.append('/').append(user).append('/').append(repository);
+		uri.append(IGitHubConstants.SEGMENT_MILESTONES).append(
+				IGitHubConstants.SUFFIX_JSON);
+		Map<String, String> params = null;
+		if (state != null) {
+			params = Collections.singletonMap(IssueService.FILTER_STATE, state);
+		}
+		TypeToken<List<Milestone>> milestoneToken = new TypeToken<List<Milestone>>() {
+		};
+		return this.client
+				.get(uri.toString(), params, milestoneToken.getType());
+	}
+
+}