1 files changed, 93 insertions, 0 deletions
diff --git a/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/tmf/core/timestamp/TmfTimestampDelta.java b/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/tmf/core/timestamp/TmfTimestampDelta.java
new file mode 100644
index 0000000000..af46693a39
--- /dev/null
+++ b/tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/tmf/core/timestamp/TmfTimestampDelta.java
@@ -0,0 +1,93 @@
+/*******************************************************************************
+ * Copyright (c) 2012, 2014 Ericsson
+ *
+ * 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:
+ *   Bernd Hufmann - Initial API and implementation
+ *******************************************************************************/
+package org.eclipse.tracecompass.tmf.core.timestamp;
+
+import java.util.TimeZone;
+
+/**
+ * A generic timestamp implementation for delta between timestamps.
+ * The toString() method takes negative values into consideration.
+ *
+ * @author Bernd Hufmann
+ */
+public class TmfTimestampDelta extends TmfTimestamp {
+
+    // ------------------------------------------------------------------------
+    // Members
+    // ------------------------------------------------------------------------
+
+    // ------------------------------------------------------------------------
+    // Constructors
+    // ------------------------------------------------------------------------
+    /**
+     * Default constructor
+     */
+    public TmfTimestampDelta() {
+        super();
+    }
+
+    /**
+     * Simple constructor (scale = precision = 0)
+     *
+     * @param value the timestamp value
+     */
+
+    public TmfTimestampDelta(long value) {
+        super(value);
+    }
+
+    /**
+     * Simple constructor (precision = 0)
+     *
+     * @param value the timestamp value
+     * @param scale the timestamp scale
+     */
+    public TmfTimestampDelta(long value, int scale) {
+        super(value, scale);
+    }
+
+
+    /**
+     * Copy constructor
+     *
+     * @param timestamp the timestamp to copy
+     */
+    public TmfTimestampDelta(ITmfTimestamp timestamp) {
+        super(timestamp);
+    }
+
+    // ------------------------------------------------------------------------
+    // Operations
+    // ------------------------------------------------------------------------
+
+    @Override
+    public ITmfTimestamp normalize(final long offset, final int scale) {
+        ITmfTimestamp nts = super.normalize(offset, scale);
+        return new TmfTimestampDelta(nts.getValue(), nts.getScale());
+    }
+
+    @Override
+    public String toString() {
+        return toString(TmfTimestampFormat.getDefaulIntervalFormat());
+    }
+
+    @Override
+    public String toString(TmfTimestampFormat format) {
+        if (getValue() < 0) {
+            TmfTimestampDelta tmpTs = new TmfTimestampDelta(-getValue(), getScale());
+            return "-" + tmpTs.toString(format); //$NON-NLS-1$
+        }
+        TmfTimestampFormat deltaFormat = new TmfTimestampFormat(format.toPattern());
+        deltaFormat.setTimeZone(TimeZone.getTimeZone("UTC")); //$NON-NLS-1$
+        return super.toString(deltaFormat);
+    }
+}