summaryrefslogtreecommitdiffstats
path: root/pki/base/common/src/com/netscape/cmscore/util/FileAsString.java
diff options
context:
space:
mode:
Diffstat (limited to 'pki/base/common/src/com/netscape/cmscore/util/FileAsString.java')
-rw-r--r--pki/base/common/src/com/netscape/cmscore/util/FileAsString.java123
1 files changed, 123 insertions, 0 deletions
diff --git a/pki/base/common/src/com/netscape/cmscore/util/FileAsString.java b/pki/base/common/src/com/netscape/cmscore/util/FileAsString.java
new file mode 100644
index 000000000..968f9cb80
--- /dev/null
+++ b/pki/base/common/src/com/netscape/cmscore/util/FileAsString.java
@@ -0,0 +1,123 @@
+// --- BEGIN COPYRIGHT BLOCK ---
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// (C) 2007 Red Hat, Inc.
+// All rights reserved.
+// --- END COPYRIGHT BLOCK ---
+package com.netscape.cmscore.util;
+
+
+import java.io.*;
+import java.lang.StringBuffer;
+
+
+public class FileAsString {
+
+ protected String mFilename;
+ protected long mLastRead = 0;
+
+ private String fileContents = null;
+ private Object userObject = null;
+
+ /**
+ * This class enables you to get treat a file as a string
+ * If the file changes underneath you, it will automatically
+ * be read
+ */
+ public FileAsString(String filename) throws IOException {
+ mFilename = filename;
+ readFile();
+ }
+
+ public boolean fileHasChanged() throws IOException {
+ File file = new File(mFilename);
+ long lastmodified = file.lastModified();
+
+ return (lastmodified != mLastRead);
+ }
+
+ private void readFile()
+ throws IOException {
+ BufferedReader br = createBufferedReader(mFilename);
+ StringBuffer buf = new StringBuffer("");
+ int bytesread = 0;
+
+ do {
+ char cbuf[] = new char[16];
+
+ bytesread = br.read(cbuf, 0, cbuf.length);
+ if (bytesread > 0) {
+ buf.append(cbuf, 0, bytesread);
+ }
+ String s = new String(buf);
+ }
+ while (bytesread != -1);
+ br.close();
+
+ fileContents = new String(buf);
+ }
+
+ private BufferedReader createBufferedReader(String filename)
+ throws IOException {
+ Debug.trace("createBufferedReader(filename=" + filename + ")");
+ BufferedReader br = null;
+ FileReader fr = null;
+
+ try {
+ File file = new File(filename);
+
+ mLastRead = file.lastModified();
+ fr = new FileReader(file);
+ br = new BufferedReader(fr);
+ mFilename = filename;
+ } catch (IOException e) {
+ try {
+ if (fr != null) {
+ fr.close();
+ }
+ } catch (Exception f) {
+ }
+ throw e;
+ }
+ return br;
+ }
+
+ public String getAsString()
+ throws IOException {
+ if (fileHasChanged()) {
+ readFile();
+ }
+ return fileContents;
+ }
+
+ public Object getUserObject() {
+ try {
+ if (fileHasChanged()) {
+ userObject = null;
+ }
+ } catch (Exception e) {
+ userObject = null;
+ }
+ return userObject;
+ }
+
+ public void setUserObject(Object x) {
+ userObject = x;
+ }
+
+ public String getFilename() {
+ return mFilename;
+ }
+
+}