factored out common code to locate a source file on lxr or bonsai

gc/boehm/leaksoup/FileLocator.java

@@ -0,0 +1,97 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express oqr
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Patrick C. Beard <beard@netscape.com>
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU Public License (the "GPL"), in which case the
+ * provisions of the GPL are applicable instead of those above.
+ * If you wish to allow use of your version of this file only
+ * under the terms of the GPL and not to allow others to use your
+ * version of this file under the NPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL.  If you do not delete
+ * the provisions above, a recipient may use your version of this
+ * file under either the NPL or the GPL.
+ */
+
+import java.io.*;
+import java.util.*;
+
+public class FileLocator {
+	static boolean USE_BLAME = false;
+
+	static final String MOZILLA_BASE = "mozilla/";
+	static final String LXR_BASE = "http://lxr.mozilla.org/seamonkey/source/";
+	static final String BONSAI_BASE = "http://cvs-mirror.mozilla.org/webtools/bonsai/cvsblame.cgi?file=";
+
+	static final Hashtable fileTables = new Hashtable();
+	static final RevisionTable revisionTable = new RevisionTable();
+	static final BlameTable blameTable = new BlameTable();
+
+	public static String getFileLocation(String line) throws IOException {
+		int leftBracket = line.indexOf('[');
+		if (leftBracket == -1)
+			return line;
+		int rightBracket = line.indexOf(']', leftBracket + 1);
+		if (rightBracket == -1)
+			return line;
+		int comma = line.indexOf(',', leftBracket + 1);
+		String macPath = line.substring(leftBracket + 1, comma);
+		String fullPath = "/" + macPath.replace(':', '/');
+		
+		// compute the line number in the file.
+		int offset = 0;
+		try {
+			offset = Integer.parseInt(line.substring(comma + 1, rightBracket));
+		} catch (NumberFormatException nfe) {
+			return line;
+		}
+		FileTable table = (FileTable) fileTables.get(fullPath);
+		if (table == null) {
+			table = new FileTable(fullPath);
+			fileTables.put(fullPath, table);
+		}
+		int lineNumber = 1 + table.getLine(offset);
+		int lineAnchor = lineNumber;
+
+		// compute the URL of the file.
+		int mozillaIndex = fullPath.indexOf(MOZILLA_BASE);
+		String locationURL = null, blameInfo = "";
+		if (mozillaIndex > -1) {
+			// if using blame, hilite the line number of the call, and include the revision.
+			String mozillaPath = fullPath.substring(mozillaIndex);
+			if (USE_BLAME) {
+				locationURL = BONSAI_BASE + mozillaPath	+ "&rev=" + revisionTable.getRevision(fullPath) + "&mark=" + lineNumber;
+				if (lineAnchor > 10)
+					lineAnchor -= 10;
+			} else {
+				locationURL = LXR_BASE + mozillaPath.substring(MOZILLA_BASE.length());
+			}
+			blameInfo = " (" + blameTable.getBlame(mozillaPath, lineNumber) + ")";
+		} else {
+			locationURL = "file://" + fullPath;
+		}
+		
+		return "<A HREF=\"" + locationURL + "#" + lineAnchor + "\"TARGET=\"SOURCE\">" + line.substring(0, leftBracket) + "</A>" + blameInfo;
+	}
+}