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/*
* Copyright 2016 Anton Tananaev (anton@traccar.org)
* Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
*
* 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.traccar.web;
import java.beans.Introspector;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Collection;
import java.util.Comparator;
import java.util.Date;
import java.util.Map;
import java.util.SortedSet;
import java.util.TreeSet;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormatter;
import org.joda.time.format.ISODateTimeFormat;
import org.traccar.helper.Log;
import org.traccar.model.MiscFormatter;
public class CsvBuilder {
private static final String LINE_ENDING = "\r\n";
private static final String SEPARATOR = ";";
private static final DateTimeFormatter DATE_FORMAT = ISODateTimeFormat.dateTime();
private StringBuilder builder = new StringBuilder();
private void addLineEnding() {
builder.append(LINE_ENDING);
}
private void addSeparator() {
builder.append(SEPARATOR);
}
private SortedSet<Method> getSortedMethods(Object object) {
Method[] methodArray = object.getClass().getMethods();
SortedSet<Method> methods = new TreeSet<Method>(new Comparator<Method>() {
@Override
public int compare(Method m1, Method m2) {
if (m1.getName().equals("getAttributes") && !m1.getName().equals(m2.getName())) {
return 1;
}
if (m2.getName().equals("getAttributes") && !m1.getName().equals(m2.getName())) {
return -1;
}
return m1.getName().compareTo(m2.getName());
}
});
methods.addAll(Arrays.asList(methodArray));
return methods;
}
public void addLine(Object object) {
SortedSet<Method> methods = getSortedMethods(object);
for (Method method : methods) {
if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
try {
if (method.getReturnType().equals(boolean.class)) {
builder.append((Boolean) method.invoke(object));
addSeparator();
} else if (method.getReturnType().equals(int.class)) {
builder.append((Integer) method.invoke(object));
addSeparator();
} else if (method.getReturnType().equals(long.class)) {
builder.append((Long) method.invoke(object));
addSeparator();
} else if (method.getReturnType().equals(double.class)) {
builder.append((Double) method.invoke(object));
addSeparator();
} else if (method.getReturnType().equals(String.class)) {
builder.append((String) method.invoke(object));
addSeparator();
} else if (method.getReturnType().equals(Date.class)) {
Date value = (Date) method.invoke(object);
builder.append(DATE_FORMAT.print(new DateTime(value)));
addSeparator();
} else if (method.getReturnType().equals(Map.class)) {
Map value = (Map) method.invoke(object);
if (value != null) {
String map = MiscFormatter.toJson(value).toString();
map = map.replaceAll("[\\{\\}\"]", "");
map = map.replaceAll(",", " ");
builder.append(map);
addSeparator();
}
}
} catch (IllegalAccessException | InvocationTargetException error) {
Log.warning(error);
}
}
}
addLineEnding();
}
public void addHeaderLine(Object object) {
SortedSet<Method> methods = getSortedMethods(object);
for (Method method : methods) {
if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
String name = Introspector.decapitalize(method.getName().substring(3));
if (!name.equals("class")) {
builder.append(name);
addSeparator();
}
}
}
addLineEnding();
}
public void addArray(Collection<?> array) {
for (Object object : array) {
switch (object.getClass().getSimpleName().toLowerCase()) {
case "string":
builder.append(object.toString());
addLineEnding();
break;
case "long":
builder.append((long) object);
addLineEnding();
break;
case "double":
builder.append((double) object);
addLineEnding();
break;
case "boolean":
builder.append((boolean) object);
addLineEnding();
break;
default:
addLine(object);
break;
}
}
}
public String build() {
return builder.toString();
}
}
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