com.liferay.osgi.service.tracker.collections.ServiceTrackerMapBuilder Maven / Gradle / Ivy
/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.osgi.service.tracker.collections;
import com.liferay.osgi.service.tracker.collections.internal.DefaultServiceTrackerCustomizer;
import com.liferay.osgi.service.tracker.collections.internal.map.MultiValueServiceTrackerBucketFactory;
import com.liferay.osgi.service.tracker.collections.internal.map.ServiceTrackerMapImpl;
import com.liferay.osgi.service.tracker.collections.internal.map.SingleValueServiceTrackerBucketFactory;
import com.liferay.osgi.service.tracker.collections.map.PropertyServiceReferenceMapper;
import com.liferay.osgi.service.tracker.collections.map.ServiceReferenceMapper;
import com.liferay.osgi.service.tracker.collections.map.ServiceTrackerBucketFactory;
import com.liferay.osgi.service.tracker.collections.map.ServiceTrackerMap;
import com.liferay.osgi.service.tracker.collections.map.ServiceTrackerMapListener;
import java.util.Comparator;
import java.util.List;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
/**
* @author Carlos Sierra Andrés
*/
public class ServiceTrackerMapBuilder {
public interface Collector {
public ServiceTrackerMap build();
public Collector newCollector(
ServiceTrackerMapListener serviceTrackerMapListener);
}
public interface Mapper {
public Collector collect(
ServiceTrackerBucketFactory serviceTrackerBucketFactory);
public Collector> collectMultiValue();
public Collector> collectMultiValue(
Comparator> comparator);
public Collector collectSingleValue();
public Collector collectSingleValue(
Comparator> comparator);
}
public interface Selector {
public Mapper map(
ServiceReferenceMapper serviceReferenceMapper);
public Mapper map(String propertyKey);
public Selector newSelector(
ServiceTrackerCustomizer serviceTrackerCustomizer);
public Selector newSelector(String filterString);
}
public interface SelectorFactory {
public static Selector newSelector(
BundleContext bundleContext, Class clazz) {
return new SelectorImpl<>(bundleContext, clazz, null, null);
}
public static Selector newSelector(
BundleContext bundleContext, Class clazz, String filterString) {
return new SelectorImpl<>(bundleContext, clazz, filterString, null);
}
public static Selector newSelector(
BundleContext bundleContext, String className) {
return new SelectorImpl<>(
bundleContext, Object.class, "(objectClass=" + className + ")",
null);
}
public static Selector newSelectorWithFilter(
BundleContext bundleContext, String filterString) {
return new SelectorImpl<>(
bundleContext, Object.class, filterString, null);
}
}
private static class CollectorImpl
implements Collector {
@Override
public ServiceTrackerMap build() {
return new ServiceTrackerMapImpl<>(
_bundleContext, _clazz, _filterString, _serviceReferenceMapper,
_serviceTrackerCustomizer, _serviceTrackerBucketFactory,
_serviceTrackerMapListener);
}
@Override
public Collector newCollector(
ServiceTrackerMapListener serviceTrackerMapListener) {
return new CollectorImpl<>(
_bundleContext, _clazz, _serviceTrackerCustomizer,
_filterString, _serviceReferenceMapper,
_serviceTrackerBucketFactory, serviceTrackerMapListener);
}
private CollectorImpl(
BundleContext bundleContext, Class clazz,
ServiceTrackerCustomizer serviceTrackerCustomizer,
String filterString,
ServiceReferenceMapper serviceReferenceMapper,
ServiceTrackerBucketFactory serviceTrackerBucketFactory,
ServiceTrackerMapListener serviceTrackerMapListener) {
_bundleContext = bundleContext;
_clazz = clazz;
if (serviceTrackerCustomizer == null) {
_serviceTrackerCustomizer = new DefaultServiceTrackerCustomizer(
_bundleContext);
}
else {
_serviceTrackerCustomizer = serviceTrackerCustomizer;
}
_filterString = filterString;
_serviceReferenceMapper = serviceReferenceMapper;
_serviceTrackerBucketFactory = serviceTrackerBucketFactory;
_serviceTrackerMapListener = serviceTrackerMapListener;
}
private final BundleContext _bundleContext;
private final Class _clazz;
private final String _filterString;
private final ServiceReferenceMapper _serviceReferenceMapper;
private final ServiceTrackerBucketFactory
_serviceTrackerBucketFactory;
private final ServiceTrackerCustomizer
_serviceTrackerCustomizer;
private final ServiceTrackerMapListener
_serviceTrackerMapListener;
}
private static class MapperImpl
implements Mapper {
@Override
public Collector collect(
ServiceTrackerBucketFactory
serviceTrackerBucketFactory) {
return new CollectorImpl<>(
_bundleContext, _clazz, _serviceTrackerCustomizer,
_filterString, _serviceReferenceMapper,
serviceTrackerBucketFactory, null);
}
@Override
public Collector> collectMultiValue() {
return new CollectorImpl<>(
_bundleContext, _clazz, _serviceTrackerCustomizer,
_filterString, _serviceReferenceMapper,
new MultiValueServiceTrackerBucketFactory<>(), null);
}
@Override
public Collector> collectMultiValue(
Comparator> comparator) {
return new CollectorImpl<>(
_bundleContext, _clazz, _serviceTrackerCustomizer,
_filterString, _serviceReferenceMapper,
new MultiValueServiceTrackerBucketFactory<>(comparator), null);
}
@Override
public Collector collectSingleValue() {
return new CollectorImpl<>(
_bundleContext, _clazz, _serviceTrackerCustomizer,
_filterString, _serviceReferenceMapper,
new SingleValueServiceTrackerBucketFactory<>(), null);
}
@Override
public Collector collectSingleValue(
Comparator> comparator) {
return new CollectorImpl<>(
_bundleContext, _clazz, _serviceTrackerCustomizer,
_filterString, _serviceReferenceMapper,
new SingleValueServiceTrackerBucketFactory<>(comparator), null);
}
private MapperImpl(
BundleContext bundleContext, Class clazz,
ServiceTrackerCustomizer serviceTrackerCustomizer,
ServiceReferenceMapper serviceReferenceMapper,
String filterString) {
_bundleContext = bundleContext;
_clazz = clazz;
_serviceTrackerCustomizer = serviceTrackerCustomizer;
_serviceReferenceMapper = serviceReferenceMapper;
_filterString = filterString;
}
private final BundleContext _bundleContext;
private final Class _clazz;
private final String _filterString;
private final ServiceReferenceMapper _serviceReferenceMapper;
private final ServiceTrackerCustomizer
_serviceTrackerCustomizer;
}
private static class SelectorImpl implements Selector {
@Override
public Mapper map(
ServiceReferenceMapper serviceReferenceMapper) {
return new MapperImpl<>(
_bundleContext, _clazz, _serviceTrackerCustomizer,
serviceReferenceMapper, _filterString);
}
@Override
public Mapper map(String propertyKey) {
String filterString = _filterString;
if (filterString == null) {
filterString = "(" + propertyKey + "=*)";
}
return new MapperImpl<>(
_bundleContext, _clazz, _serviceTrackerCustomizer,
new PropertyServiceReferenceMapper<>(propertyKey),
filterString);
}
@Override
public Selector newSelector(
ServiceTrackerCustomizer serviceTrackerCustomizer) {
return new SelectorImpl<>(
_bundleContext, _clazz, _filterString,
serviceTrackerCustomizer);
}
@Override
public Selector newSelector(String filterString) {
return new SelectorImpl<>(
_bundleContext, _clazz, filterString,
_serviceTrackerCustomizer);
}
private SelectorImpl(
BundleContext bundleContext, Class clazz, String filterString,
ServiceTrackerCustomizer serviceTrackerCustomizer) {
_bundleContext = bundleContext;
_clazz = clazz;
_filterString = filterString;
_serviceTrackerCustomizer = serviceTrackerCustomizer;
}
private final BundleContext _bundleContext;
private final Class _clazz;
private final String _filterString;
private final ServiceTrackerCustomizer _serviceTrackerCustomizer;
}
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