1 files changed, 74 insertions, 0 deletions
diff --git a/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/GitHubException.java b/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/GitHubException.java
new file mode 100644
index 00000000..6ff1a908
--- /dev/null
+++ b/org.eclipse.mylyn.github.core/src/org/eclipse/mylyn/github/internal/GitHubException.java
@@ -0,0 +1,74 @@
+/*******************************************************************************
+ *  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 java.io.IOException;
+import java.text.MessageFormat;
+import java.util.List;
+
+import org.eclipse.egit.github.core.FieldError;
+import org.eclipse.egit.github.core.RequestError;
+import org.eclipse.egit.github.core.client.RequestException;
+
+/**
+ * GitHub exception that wraps and formats a {@link RequestException}
+ */
+public class GitHubException extends IOException {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = -1456910662911777231L;
+
+	/**
+	 * Create GitHub exception from {@link RequestException}
+	 * 
+	 * @param cause
+	 */
+	public GitHubException(RequestException cause) {
+		super(cause);
+	}
+
+	public String getMessage() {
+		RequestError error = ((RequestException) getCause()).getError();
+		StringBuilder message = new StringBuilder(error.getMessage());
+		List<FieldError> errors = error.getErrors();
+		if (errors != null && errors.size() > 0) {
+			message.append(':');
+			for (FieldError fieldError : errors)
+				message.append(' ').append(format(fieldError)).append(',');
+			message.deleteCharAt(message.length() - 1);
+		}
+		return message.toString();
+	}
+
+	private String format(FieldError error) {
+		String code = error.getCode();
+		String value = error.getValue();
+		String field = error.getField();
+		String resource = error.getResource();
+		if (FieldError.CODE_INVALID.equals(code))
+			if (value != null)
+				return MessageFormat
+						.format(Messages.FieldError_InvalidFieldWithValue,
+								value, field);
+			else
+				return MessageFormat.format(Messages.FieldError_InvalidField,
+						field, value);
+		else if (FieldError.CODE_MISSING_FIELD.equals(code))
+			return MessageFormat
+					.format(Messages.FieldError_MissingField, field);
+		else
+			return MessageFormat.format(Messages.FieldError_ResourceError,
+					field, resource);
+	}
+
+}