projects / deliverable / tracecompass.git / blame
| Commit | Line | Data |
|---|---|---|
| 5d10d135 ASL |
1 | /******************************************************************************* |
| 2 | * Copyright (c) 2009 Ericsson | |
| 3 | * | |
| 4 | * All rights reserved. This program and the accompanying materials are | |
| 5 | * made available under the terms of the Eclipse Public License v1.0 which | |
| 6 | * accompanies this distribution, and is available at | |
| 7 | * http://www.eclipse.org/legal/epl-v10.html | |
| 8 | * | |
| 9 | * Contributors: | |
| 10 | * Alvaro Sanchez-Leon (alvsan09@gmail.com) - Initial API and implementation | |
| 11 | *******************************************************************************/ | |
| 5945cec9 | 12 | package org.eclipse.linuxtools.internal.lttng.core.state.model; |
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13 | |
| 14 | import java.util.Stack; | |
| 15 | ||
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16 | import org.eclipse.linuxtools.internal.lttng.core.TraceDebug; |
| 17 | import org.eclipse.linuxtools.internal.lttng.core.state.StateStrings.BdevMode; | |
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18 | |
| 19 | /** | |
| 20 | * <b><u>LttvBdevState</u></b> | |
| 21 | * <p> | |
| 22 | * | |
| 23 | */ | |
| 24 | public class LttngBdevState implements Cloneable { | |
| 25 | // ======================================================================== | |
| 26 | // Data | |
| 27 | // ======================================================================= | |
| 28 | private Stack<BdevMode> mode_stack = new Stack<BdevMode>() ; | |
| 29 | ||
| 30 | ||
| 31 | // ======================================================================== | |
| 32 | // Constructor | |
| 33 | // ======================================================================= | |
| 34 | public LttngBdevState() { | |
| 35 | mode_stack.push(BdevMode.LTTV_BDEV_UNKNOWN); | |
| 36 | } | |
| 37 | ||
| 38 | // ======================================================================== | |
| 39 | // Methods | |
| 40 | // ======================================================================= | |
| 41 | public void clearBdevStack() { | |
| 42 | mode_stack.clear(); | |
| 43 | } | |
| 44 | ||
| 45 | public void clearAndSetBaseToBdevStack(BdevMode newState) { | |
| 46 | mode_stack.clear(); | |
| 47 | // Ensure that there is always at least 1 item in the stack | |
| 48 | mode_stack.push(newState); | |
| 49 | } | |
| 50 | ||
| 51 | public void pushToBdevStack(BdevMode newState) { | |
| 52 | mode_stack.push(newState); | |
| 53 | } | |
| 54 | ||
| 55 | public BdevMode popFromBdevStack() { | |
| 56 | ||
| 57 | BdevMode returnedMode = mode_stack.pop(); | |
| 58 | ||
| 59 | if (mode_stack.size() < 1) { | |
| 9c4eb5f7 | 60 | TraceDebug.debug("Removing last item from mode stack is not allowed! (popFromModeStack)"); //$NON-NLS-1$ |
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61 | mode_stack.push(BdevMode.LTTV_BDEV_UNKNOWN); |
| 62 | } | |
| 63 | ||
| 64 | return returnedMode; | |
| 65 | } | |
| 66 | ||
| 67 | public BdevMode peekFromBdevStack() { | |
| 68 | return mode_stack.peek(); | |
| 69 | } | |
| 70 | ||
| 71 | ||
| cc6eec3e | 72 | @Override |
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73 | @SuppressWarnings("unchecked") |
| 74 | public LttngBdevState clone() { | |
| 75 | LttngBdevState newState = null; | |
| 76 | ||
| 77 | try { | |
| 78 | newState = (LttngBdevState)super.clone(); | |
| 79 | // Clone should work correctly for all stack object that contain basic java object (String, Long, etc...) | |
| 80 | newState.mode_stack = (Stack<BdevMode>)this.mode_stack.clone(); | |
| 81 | } | |
| 82 | catch ( CloneNotSupportedException e ) { | |
| 9c4eb5f7 | 83 | System.out.println("Cloning failed with : " + e.getMessage() ); //$NON-NLS-1$ |
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84 | } |
| 85 | ||
| 86 | return newState; | |
| 87 | } | |
| 88 | ||
| 89 | } |