/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.syncope.console.commons;
import java.io.IOException;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.wicket.request.Request;
import org.apache.wicket.request.Response;
import org.apache.wicket.util.cookies.CookieDefaults;
import org.apache.wicket.util.cookies.CookieUtils;
import org.apache.wicket.util.crypt.Base64;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.type.TypeReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
public class PreferenceManager {
/**
* Logger.
*/
private static final Logger LOG = LoggerFactory.getLogger(PreferenceManager.class);
private static final String PREFMAN_KEY = "prefMan";
private static final int ONE_YEAR_TIME = 60 * 60 * 24 * 365;
private static final TypeReference MAP_TYPE_REF = new TypeReference<Map<String, String>>() {
};
private static final List<Integer> PAGINATOR_CHOICES = Arrays.asList(new Integer[]{10, 25, 50});
@Autowired
private ObjectMapper mapper;
private final CookieUtils cookieUtils;
public PreferenceManager() {
CookieDefaults cookieDefaults = new CookieDefaults();
cookieDefaults.setMaxAge(ONE_YEAR_TIME);
cookieUtils = new CookieUtils(cookieDefaults);
}
public List<Integer> getPaginatorChoices() {
return PAGINATOR_CHOICES;
}
private Map<String, String> getPrefs(final String value) {
Map<String, String> prefs;
try {
if (StringUtils.hasText(value)) {
prefs = mapper.readValue(value, MAP_TYPE_REF);
} else {
throw new Exception("Invalid cookie value '" + value + "'");
}
} catch (Exception e) {
LOG.debug("No preferences found", e);
prefs = new HashMap<String, String>();
}
return prefs;
}
private String setPrefs(final Map<String, String> prefs) throws IOException {
StringWriter writer = new StringWriter();
mapper.writeValue(writer, prefs);
return writer.toString();
}
public String get(final Request request, final String key) {
String result = null;
String prefString = cookieUtils.load(PREFMAN_KEY);
if (prefString != null) {
final Map<String, String> prefs = getPrefs(new String(Base64.decodeBase64(prefString.getBytes())));
result = prefs.get(key);
}
return result;
}
public Integer getPaginatorRows(final Request request, final String key) {
Integer result = getPaginatorChoices().get(0);
String value = get(request, key);
if (value != null) {
try {
result = Integer.valueOf(value);
} catch (NumberFormatException e) {
LOG.error("Unparsable value " + value, e);
}
}
return result;
}
public List<String> getList(final Request request, final String key) {
final List<String> result = new ArrayList<String>();
final String compound = get(request, key);
if (StringUtils.hasText(compound)) {
String[] items = compound.split(";");
result.addAll(Arrays.asList(items));
}
return result;
}
public void set(final Request request, final Response response, final Map<String, List<String>> prefs) {
String prefString = cookieUtils.load(PREFMAN_KEY);
final Map<String, String> current = new HashMap<String, String>();
if (prefString != null) {
current.putAll(getPrefs(new String(Base64.decodeBase64(prefString.getBytes()))));
}
// after retrieved previous setting in order to overwrite the key ...
for (Entry<String, List<String>> entry : prefs.entrySet()) {
current.put(entry.getKey(), StringUtils.collectionToDelimitedString(entry.getValue(), ";"));
}
try {
cookieUtils.save(PREFMAN_KEY, new String(Base64.encodeBase64(setPrefs(current).getBytes())));
} catch (IOException e) {
LOG.error("Could not save {} info: {}", getClass().getSimpleName(), current, e);
}
}
public void set(final Request request, final Response response, final String key, final String value) {
String prefString = cookieUtils.load(PREFMAN_KEY);
final Map<String, String> current = new HashMap<String, String>();
if (prefString != null) {
current.putAll(getPrefs(new String(Base64.decodeBase64(prefString.getBytes()))));
}
// after retrieved previous setting in order to overwrite the key ...
current.put(key, value);
try {
cookieUtils.save(PREFMAN_KEY, new String(Base64.encodeBase64(setPrefs(current).getBytes())));
} catch (IOException e) {
LOG.error("Could not save {} info: {}", getClass().getSimpleName(), current, e);
}
}
public void setList(final Request request, final Response response, final String key, final List<String> values) {
set(request, response, key, StringUtils.collectionToDelimitedString(values, ";"));
}
public void setList(final Request request, final Response response, final Map<String, List<String>> prefs) {
set(request, response, prefs);
}
}