+++ /dev/null
-/*
- * Copyright (C) 2007-2012 Argeo GmbH
- *
- * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.argeo.security.ui.views;
-
-import java.text.DateFormat;
-import java.text.SimpleDateFormat;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.LinkedList;
-import java.util.List;
-
-import org.argeo.ArgeoLogListener;
-import org.eclipse.jface.viewers.ILazyContentProvider;
-import org.eclipse.jface.viewers.TableViewer;
-import org.eclipse.jface.viewers.Viewer;
-import org.eclipse.swt.widgets.Table;
-import org.eclipse.swt.widgets.TableItem;
-
-/** A content provider maintaining an array of lines */
-class LogContentProvider implements ILazyContentProvider, ArgeoLogListener {
- private DateFormat dateFormat = new SimpleDateFormat("HH:mm:ss");
-
- private final Long start;
- /** current - start = line number. first line is number '1' */
- private Long current;
-
- // TODO make it configurable
- private final Integer maxLineBufferSize = 10 * 1000;
-
- private final TableViewer viewer;
- private LinkedList<LogLine> lines;
-
- public LogContentProvider(TableViewer viewer) {
- this.viewer = viewer;
- start = System.currentTimeMillis();
- lines = new LinkedList<LogLine>();
- current = start;
- }
-
- public synchronized void dispose() {
- lines.clear();
- lines = null;
- }
-
- @SuppressWarnings("unchecked")
- public synchronized void inputChanged(Viewer viewer, Object oldInput,
- Object newInput) {
- List<String> lin = (List<String>) newInput;
- if (lin == null)
- return;
- for (String line : lin) {
- addLine(line);
- }
- this.viewer.setItemCount(lines.size());
- }
-
- public void updateElement(int index) {
- viewer.replace(lines.get(index), index);
- }
-
- public synchronized void appendLog(String username, Long timestamp,
- String level, String category, String thread, Object msg,
- String[] exception) {
- // check if valid
- if (lines == null)
- return;
-
- String message = msg.toString();
- int count = 0;
- String prefix = prefix(username, timestamp, level, category, thread)
- .toString();
- // String suffix = suffix(username, timestamp, level, category, thread);
- for (String line : message.split("\n")) {
- addLine(count == 0 ? prefix + line : line);
- count++;
- }
-
- if (exception != null) {
- for (String ste : exception) {
- addLine(ste);
- }
- }
-
- viewer.getTable().getDisplay().asyncExec(new Runnable() {
- public void run() {
- if (lines == null)
- return;
- viewer.setItemCount(lines.size());
- // doesn't work with syncExec
- scrollToLastLine();
- }
- });
- }
-
- protected StringBuffer prefix(String username, Long timestamp,
- String level, String category, String thread) {
- StringBuffer buf = new StringBuffer("");
- buf.append(dateFormat.format(new Date(timestamp))).append(" ");
- // buf.append(level).append(" ");
- return buf;
- }
-
- /** Normalize string to the given size */
- protected String norm(String str, Integer size) {
- int length = str.length();
- if (length == size)
- return str;
- else if (length > size)
- return str.substring(0, size);
- else {
- char[] arr = new char[size - length];
- Arrays.fill(arr, ' ');
- return str + new String(arr);
- }
- }
-
- // protected String suffix(String username, Long timestamp, String level,
- // String category, String thread) {
- // return "";
- // }
-
- /** Scroll to the last line */
- protected synchronized void scrollToLastLine() {
- // we try to show last line with two methods
- // viewer.reveal(lines.peekLast());
-
- Table table = viewer.getTable();
- TableItem ti = table.getItem(table.getItemCount() - 1);
- table.showItem(ti);
- }
-
- protected synchronized LogLine addLine(String line) {
- // check for maximal size and purge if necessary
- while (lines.size() >= maxLineBufferSize) {
- for (int i = 0; i < maxLineBufferSize / 10; i++) {
- lines.poll();
- }
- }
-
- current++;
- LogLine logLine = new LogLine(current, line);
- lines.add(logLine);
- return logLine;
- }
-
- private class LogLine {
- private Long linenumber;
- private String message;
-
- public LogLine(Long linenumber, String message) {
- this.linenumber = linenumber;
- this.message = message;
- }
-
- @Override
- public int hashCode() {
- return linenumber.intValue();
- }
-
- @Override
- public boolean equals(Object obj) {
- if (obj instanceof LogLine)
- return ((LogLine) obj).linenumber.equals(linenumber);
- else
- return false;
- }
-
- @Override
- public String toString() {
- return message;
- }
-
- }
-}
\ No newline at end of file
projects / lgpl / argeo-commons.git / blobdiff