1 /*

     2  * CDDL HEADER START

     3  *

     4  * The contents of this file are subject to the terms of the

     5  * Common Development and Distribution License (the "License").

     6  * You may not use this file except in compliance with the License.

     7  *

     8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

     9  * or http://www.opensolaris.org/os/licensing.

    10  * See the License for the specific language governing permissions

    11  * and limitations under the License.

    12  *

    13  * When distributing Covered Code, include this CDDL HEADER in each

    14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

    15  * If applicable, add the following below this CDDL HEADER, with the

    16  * fields enclosed by brackets "[]" replaced with your own identifying

    17  * information: Portions Copyright [yyyy] [name of copyright owner]

    18  *

    19  * CDDL HEADER END

    20  */

    21 

    22 /*

    23  * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.

    24  */

    25 

    26 package com.oracle.solaris.vp.panel.swing.smf;

    27 

    28 import java.awt.*;

    29 import java.beans.*;

    30 import java.io.IOException;

    31 import javax.swing.*;

    32 import com.oracle.solaris.scf.common.ScfException;

    33 import com.oracle.solaris.vp.panel.common.api.smf_old.*;

    34 import com.oracle.solaris.vp.panel.common.smf.*;

    35 import com.oracle.solaris.vp.util.misc.finder.Finder;

    36 import com.oracle.solaris.vp.util.swing.SettingsPanel;

    37 

    38 @SuppressWarnings({"serial"})

    39 public class SmfLogPanel extends SettingsPanel {

    40     //

    41     // Instance data

    42     //

    43 

    44     private JTextArea field;

    45     private ServiceTracker tracker;

    46 

    47     private PropertyChangeListener serviceListener =

    48 	new PropertyChangeListener() {

    49 	    @Override

    50 	    public void propertyChange(PropertyChangeEvent event) {

    51 		updateContentOnEventThread();

    52 	    }

    53 	};

    54 

    55     //

    56     // Constructors

    57     //

    58 

    59     public SmfLogPanel() {

    60 	field = new JTextArea() {

    61 	    @Override

    62 	    public Dimension getPreferredScrollableViewportSize() {

    63 		FontMetrics metrics = getFontMetrics(

    64 		    getFont().deriveFont(Font.BOLD));

    65 		Dimension d = super.getPreferredScrollableViewportSize();

    66 

    67 		// Set scroll pane size (20 lines heigh, 20 characters wide)

    68 		d.height = Math.min(20 * metrics.getHeight(), d.height);

    69 		d.width = Math.min(20 * metrics.charWidth('e'), d.width);

    70 

    71 		return d;

    72 	    }

    73 	};

    74 

    75 	field.setEditable(false);

    76 	field.setLineWrap(false);

    77 	field.setBackground(Color.white);

    78 

    79 	setContent(new JScrollPane(field), false, false);

    80     }

    81 

    82     //

    83     // SmfLogPanel methods

    84     //

    85 

    86     public void init(ServiceTracker tracker)

    87 	throws IOException {

    88 

    89 	if (this.tracker != tracker) {

    90 	    if (this.tracker != null) {

    91 		this.tracker.removePropertyChangeListener(

    92 		    ServiceTracker.PROPERTY_SERVICE, serviceListener);

    93 	    }

    94 

    95 	    this.tracker = tracker;

    96 

    97 	    if (tracker != null) {

    98 		tracker.addPropertyChangeListener(

    99 		    ServiceTracker.PROPERTY_SERVICE, serviceListener);

   100 	    }

   101 

   102 	    updateContentOnEventThread();

   103 	}

   104     }

   105 

   106     //

   107     // Private methods

   108     //

   109 

   110     private void updateContent() {

   111 	String content = null;

   112 	ServiceBean service = tracker == null ? null : tracker.getService();

   113 

   114 	if (tracker != null) {

   115 	    try {

   116 		// Limit to 1mb to not overwhelm network/memory

   117 		LogInfo info = service.getLogInfo(1 << 20);

   118 		byte[] bytes = info.getContents();

   119 		content = new String(bytes);

   120 		String resource = "service.log.contents";

   121 		if (bytes.length < info.getSize()) {

   122 		    resource += ".truncated";

   123 		}

   124 		content = Finder.getString(resource, info.getName(), content);

   125 	    } catch (ScfException e) {

   126 		content = Finder.getString("service.log.error");

   127 	    }

   128 	}

   129 

   130 	field.setText(content);

   131         field.scrollRectToVisible(new Rectangle(0,

   132 	    field.getPreferredSize().height));

   133     }

   134 

   135     private void updateContentOnEventThread() {

   136 	EventQueue.invokeLater(

   137 	    new Runnable() {

   138 		@Override

   139 		public void run() {

   140 		    updateContent();

   141 		}

   142 	    });

   143     }

   144 }