path: root/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-osgi/src/main/java/org/apache/tuscany/sca/implementation/osgi/OSGiProperty.java

/*
 * 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.tuscany.sca.implementation.osgi;

import javax.xml.namespace.QName;

/**
 * <tuscany:osgi.property> 
 */
public interface OSGiProperty {
    String NAME = "name";
    String TYPE = "type";
    String VALUE = "value";
    QName PROPERTY_QNAME = new QName(OSGiImplementation.SCA11_TUSCANY_NS, "osgi.property");

    String REMOTE_CONFIG_SCA = "org.osgi.sca";
    String SCA_BINDINGS = "org.osgi.sca.bindings";
    String SCA_REFERENCE = "sca.reference";
    String SCA_SERVICE = "sca.service";
    String SCA_REFERENCE_BINDING = "sca.reference.binding";
    String SCA_SERVICE_BINDING = "sca.service.binding";

    /**
     * Service property identifying the configuration types supported by a
     * distribution provider. Registered by the distribution provider on one of
     * its services to indicate the supported configuration types.
     * <p>
     * The value of this property must be of type <code>String</code>,
     * <code>String[]</code>, or <code>Collection&lt;String&gt;</code>.
     */
    public static final String REMOTE_CONFIGS_SUPPORTED = "remote.configs.supported";

    /**
     * Service property identifying the intents supported by a distribution
     * provider. Registered by the distribution provider on one of its services
     * to indicate the vocabulary of implemented intents.
     * 
     * <p>
     * The value of this property must be of type <code>String</code>,
     * <code>String[]</code>, or <code>Collection&lt;String&gt;</code>.
     */
    public static final String REMOTE_INTENTS_SUPPORTED = "remote.intents.supported";

    /**
     * Service property identifying the configuration types that should be used
     * to export the service. Each configuration type represents the
     * configuration parameters for an endpoint. A distribution provider should
     * create an endpoint for each configuration type that it supports.
     * 
     * <p>
     * This property may be supplied in the <code>properties</code>
     * <code>Dictionary</code> object passed to the
     * <code>BundleContext.registerService</code> method. The value of this
     * property must be of type <code>String</code>, <code>String[]</code>, or
     * <code>Collection&lt;String&gt;</code>.
     */
    public static final String SERVICE_EXPORTED_CONFIGS = "service.exported.configs";

    /**
     * Service property identifying the intents that the distribution provider
     * must implement to distribute the service. Intents listed in this property
     * are reserved for intents that are critical for the code to function
     * correctly, for example, ordering of messages. These intents should not be
     * configurable.
     * 
     * <p>
     * This property may be supplied in the <code>properties</code>
     * <code>Dictionary</code> object passed to the
     * <code>BundleContext.registerService</code> method. The value of this
     * property must be of type <code>String</code>, <code>String[]</code>, or
     * <code>Collection&lt;String&gt;</code>.
     */
    public static final String SERVICE_EXPORTED_INTENTS = "service.exported.intents";

    /**
     * Service property identifying the extra intents that the distribution
     * provider must implement to distribute the service. This property is
     * merged with the <code>service.exported.intents</code> property before the
     * distribution provider interprets the listed intents; it has therefore the
     * same semantics but the property should be configurable so the
     * administrator can choose the intents based on the topology. Bundles
     * should therefore make this property configurable, for example through the
     * Configuration Admin service.
     * 
     * <p>
     * This property may be supplied in the <code>properties</code>
     * <code>Dictionary</code> object passed to the
     * <code>BundleContext.registerService</code> method. The value of this
     * property must be of type <code>String</code>, <code>String[]</code>, or
     * <code>Collection&lt;String&gt;</code>.
     */
    public static final String SERVICE_EXPORTED_INTENTS_EXTRA = "service.exported.intents.extra";

    /**
     * Service property marking the service for export. It defines the
     * interfaces under which this service can be exported. This list must be a
     * subset of the types under which the service was registered. The single
     * value of an asterisk (&quot;*&quot;, &#92;u002A) indicates all the
     * interface types under which the service was registered excluding the
     * non-interface types. It is strongly recommended to only export interface
     * types and not concrete classes due to the complexity of creating proxies
     * for some type of concrete classes.
     * 
     * <p>
     * This property may be supplied in the <code>properties</code>
     * <code>Dictionary</code> object passed to the
     * <code>BundleContext.registerService</code> method. The value of this
     * property must be of type <code>String</code>, <code>String[]</code>, or
     * <code>Collection&lt;String&gt;</code>.
     */
    public static final String SERVICE_EXPORTED_INTERFACES = "service.exported.interfaces";

    /**
     * Service property identifying the service as imported. This service
     * property must be set by a distribution provider to any value when it
     * registers the endpoint proxy as an imported service. A bundle can use
     * this property to filter out imported services.
     * 
     * <p>
     * The value of this property may be of any type.
     */
    public static final String SERVICE_IMPORTED = "service.imported";

    /**
     * Service property identifying the configuration types used to import the
     * service. Any associated properties for this configuration types must be
     * properly mapped to the importing system. For example, a URL in these
     * properties must point to a valid resource when used in the importing
     * framework. If multiple configuration types are listed in this property,
     * then they must be synonyms for exactly the same remote endpoint that is
     * used to export this service.
     * 
     * <p>
     * The value of this property must be of type <code>String</code>,
     * <code>String[]</code>, or <code>Collection&lt;String&gt;</code>.
     * 
     * @see #SERVICE_EXPORTED_CONFIGS
     */
    public static final String SERVICE_IMPORTED_CONFIGS = "service.imported.configs";

    /**
     * Service property identifying the intents that this service implement.
     * This property has a dual purpose:
     * <ul>
     * <li>A bundle can use this service property to notify the distribution
     * provider that these intents are already implemented by the exported
     * service object.</li>
     * <li>A distribution provider must use this property to convey the combined
     * intents of: The exporting service, and, the intents that the exporting
     * distribution provider adds, and the intents that the importing
     * distribution provider adds.</li>
     * </ul>
     * To export a service, a distribution provider must expand any qualified
     * intents. Both the exporting and importing distribution providers must
     * recognize all intents before a service can be distributed.
     * 
     * <p>
     * The value of this property must be of type <code>String</code>,
     * <code>String[]</code>, or <code>Collection&lt;String&gt;</code>.
     */
    public static final String SERVICE_INTENTS = "service.intents";

    /* above are from Ch 13 Remote Service spec. */

    /**
     * Endpoint property identifying the id for this endpoint. This service
     * property must always be set.
     * 
     * <p>
     * The value of this property must be of type <code>String</code>.
     */
    String ENDPOINT_ID = "endpoint.id";

    /**
     * Endpoint property identifying the service id of the exported service. Can
     * be absent or 0 if the corresponding endpoint is not for an OSGi service.
     * 
     * <p>
     * The value of this property must be of type <code>Long</code>.
     */
    String ENDPOINT_SERVICE_ID = "endpoint.service.id";

    /**
     * Endpoint property identifying the universally unique id of the exporting
     * framework. Can be absent if the corresponding endpoint is not for an OSGi
     * service.
     * 
     * <p>
     * The value of this property must be of type <code>String</code>.
     */
    String ENDPOINT_FRAMEWORK_UUID = "endpoint.framework.uuid";

    /**
     * Prefix for an endpoint property identifying the interface Java package
     * version for an interface. For example, the property
     * endpoint.package.version.com.acme=1.3 describes the version of the
     * package for the com.acme.Foo interface. This endpoint property for an
     * interface package does not have to be set. If not set, the value must be
     * assumed to be 0.
     * 
     * <p>
     * Since endpoint properties are stored in a case insensitive map, case
     * variants of a package name are folded together.
     * 
     * <p>
     * The value of this property must be of type <code>String</code>.
     */
    String ENDPOINT_PACKAGE_VERSION_ = "endpoint.package.version.";

    Object getValue();

    void setValue(Object value);

    String getName();

    void setName(String name);

    String getType();

    void setType(String type);

    String getStringValue();

    void setStringValue(String value);
}