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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);
}
public void addLine(String value) {
if (value != null) {
builder.append(value);
}
addLineEnding();
}
public void addLine(long value) {
builder.append(value);
addLineEnding();
}
public void addLine(double value) {
builder.append(value);
addLineEnding();
}
public void addLine(boolean value) {
builder.append(value);
addLineEnding();
}
public void addField(String value) {
builder.append(value);
addSeparator();
}
public void addField(long value) {
builder.append(value);
addSeparator();
}
public void addField(int value) {
builder.append(value);
addSeparator();
}
public void addField(double value) {
builder.append(value);
addSeparator();
}
public void addField(boolean value) {
builder.append(value);
addSeparator();
}
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) {
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)) {
addField((Boolean) method.invoke(object));
} else if (method.getReturnType().equals(int.class)) {
addField((Integer) method.invoke(object));
} else if (method.getReturnType().equals(long.class)) {
addField((Long) method.invoke(object));
} else if (method.getReturnType().equals(double.class)) {
addField((Double) method.invoke(object));
} else if (method.getReturnType().equals(String.class)) {
addField((String) method.invoke(object));
} else if (method.getReturnType().equals(Date.class)) {
Date value = (Date) method.invoke(object);
addField(DATE_FORMAT.print(new DateTime(value)));
} else if (method.getReturnType().equals(Map.class)) {
Map value = (Map) method.invoke(object);
if (value != null) {
addField(MiscFormatter.toJson(value).toString());
}
}
} 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")) {
addField(name);
}
}
}
addLineEnding();
}
public void addArray(Collection<?> array) {
for (Object object : array) {
switch (object.getClass().getSimpleName().toLowerCase()) {
case "string":
addLine(object.toString());
break;
case "long":
addLine((long) object);
break;
case "double":
addLine((double) object);
break;
case "boolean":
addLine((boolean) object);
break;
default:
addLine(object);
break;
}
}
}
public String build() {
return builder.toString();
}
}
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