package org.drools.task.utils;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.drools.task.Attachment;
import org.drools.task.BooleanExpression;
import org.drools.task.Comment;
import org.drools.task.Deadline;
import org.drools.task.EmailNotification;
import org.drools.task.Escalation;
import org.drools.task.Group;
import org.drools.task.I18NText;
import org.drools.task.Notification;
import org.drools.task.NotificationType;
import org.drools.task.OrganizationalEntity;
import org.drools.task.Reassignment;
import org.drools.task.User;
public class CollectionUtils {
public static boolean equals(List list1, List list2) {
if ( list1 == null && list2 == null ) {
// both are null
return true;
}
if ( list1 == null || list2 == null ) {
// we know both aren't null, so if one is null them obviously false
return false;
}
if ( list1.size() != list2.size() ) {
return false;
}
if ( list1.isEmpty() && list2.isEmpty() ) {
return true;
}
for ( Object item1 : list1) {
boolean exists = false;
for ( Object item2 : list2 ) {
if ( item1.equals( item2 )) {
exists = true;
break;
}
}
if ( !exists ) {
return false;
}
}
return true;
}
public static int hashCode(List list) {
if ( list == null ) {
return 0;
}
final int prime = 31;
int result = 1;
for ( Iterator it = list.iterator(); it.hasNext(); ) {
result = prime * result + it.next().hashCode();
}
return result;
}
public static void writeCommentList(List<Comment> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( Comment item : list ) {
item.writeExternal( out );
}
}
public static List<Comment> readCommentList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<Comment> list = new ArrayList<Comment>(size);
for ( int i = 0; i < size; i++ ) {
Comment item = new Comment();
item.readExternal( in );
list.add( item );
}
return list;
}
public static void writeAttachmentList(List<Attachment> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( Attachment item : list ) {
item.writeExternal( out );
}
}
public static List<Attachment> readAttachmentList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<Attachment> list = new ArrayList<Attachment>(size);
for ( int i = 0; i < size; i++ ) {
Attachment item = new Attachment();
item.readExternal( in );
list.add( item );
}
return list;
}
public static void writeBooleanExpressionList(List<BooleanExpression> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( BooleanExpression item : list ) {
item.writeExternal( out );
}
}
public static List<BooleanExpression> readBooleanExpressionList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<BooleanExpression> list = new ArrayList<BooleanExpression>(size);
for ( int i = 0; i < size; i++ ) {
BooleanExpression item = new BooleanExpression();
item.readExternal( in );
list.add( item );
}
return list;
}
public static void writeNotificationList(List<Notification> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( Notification item : list ) {
out.writeUTF( item.getNotificationType().toString() );
item.writeExternal( out );
}
}
public static List<Notification> readNotificationList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<Notification> list = new ArrayList<Notification>(size);
for ( int i = 0; i < size; i++ ) {
Notification item = null;
switch( NotificationType.valueOf( in.readUTF() ) ) {
case Default : {
item = new Notification();
break;
}
case Email : {
item = new EmailNotification();
break;
}
}
item.readExternal( in );
list.add( item );
}
return list;
}
public static void writeReassignmentList(List<Reassignment> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( Reassignment item : list ) {
item.writeExternal( out );
}
}
public static List<Reassignment> readReassignmentList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<Reassignment> list = new ArrayList<Reassignment>(size);
for ( int i = 0; i < size; i++ ) {
Reassignment item = new Reassignment();
item.readExternal( in );
list.add( item );
}
return list;
}
public static void writeDeadlineList(List<Deadline> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( Deadline item : list ) {
item.writeExternal( out );
}
}
public static List<Deadline> readDeadlinesList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<Deadline> list = new ArrayList<Deadline>(size);
for ( int i = 0; i < size; i++ ) {
Deadline item = new Deadline();
item.readExternal( in );
list.add( item );
}
return list;
}
public static void writeEscalationList(List<Escalation> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( Escalation item : list ) {
item.writeExternal( out );
}
}
public static List<Escalation> readEscalationList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<Escalation> list = new ArrayList<Escalation>(size);
for ( int i = 0; i < size; i++ ) {
Escalation item = new Escalation();
item.readExternal( in );
list.add( item );
}
return list;
}
public static void writeI18NTextList(List<I18NText> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( I18NText item : list ) {
item.writeExternal( out );
}
}
public static List<I18NText> readI18NTextList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<I18NText> list = new ArrayList<I18NText>(size);
for ( int i = 0; i < size; i++ ) {
I18NText item = new I18NText();
item.readExternal( in );
list.add( item );
}
return list;
}
public static void writeOrganizationalEntityList(List<OrganizationalEntity> list, ObjectOutput out) throws IOException {
out.writeInt( list.size() );
for( OrganizationalEntity item : list ) {
if ( item instanceof User ) {
out.writeShort( 0 );
} else {
out.writeShort( 1 );
}
item.writeExternal( out );
}
}
public static List<OrganizationalEntity> readOrganizationalEntityList(ObjectInput in) throws IOException, ClassNotFoundException {
int size = in.readInt();
List<OrganizationalEntity> list = new ArrayList<OrganizationalEntity>(size);
for ( int i = 0; i < size; i++ ) {
short type = in.readShort();
if ( type == 0 ) {
User user = new User();
user.readExternal( in );
list.add( user );
} else {
Group group = new Group();
group.readExternal( in );
list.add( group );
}
}
return list;
}
}