org.openmdx.base.caching.virtualobjects.StandardVirtualObjects Maven / Gradle / Ivy
/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: Standard Virtual Object Provider
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2020, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.base.caching.virtualobjects;
import java.util.HashMap;
import java.util.Map;
import javax.cache.integration.CacheLoaderException;
import javax.resource.ResourceException;
import org.openmdx.base.accessor.rest.spi.ObjectRecords;
import org.openmdx.base.naming.Path;
import org.openmdx.base.rest.cci.ObjectRecord;
/**
* Standard Virtual Object Provider
*
* @since openMDX 2.17
*/
public class StandardVirtualObjects implements VirtualObjectProvider {
/**
* Any Authority is provided, even xri://@openmdx*org.openmdx.kernel.
*/
private static final Path AUTHORITY_PATTERN = new Path("xri://@openmdx*($..)");
/**
* Any Provider is provided
*/
private static final Path PROVIDER_PATTERN = new Path("xri://@openmdx*($..)/provider/($..)");
/*
* (non-Javadoc)
*
* @see org.openmdx.base.caching.virtualobjects.VirtualObjectProvider#provides(Path)
*/
@Override
public boolean provides(Path key) {
return key.isLike(AUTHORITY_PATTERN) || key.isLike(PROVIDER_PATTERN);
}
/*
* (non-Javadoc)
*
* @see javax.cache.integration.CacheLoader#load(java.lang.Object)
*/
@Override
public ObjectRecord load(
Path key
) throws CacheLoaderException {
try {
return
key.isLike(AUTHORITY_PATTERN) ? ObjectRecords.createVirtualObjectRecord(key, "org:openmdx:base:Authority") :
key.isLike(PROVIDER_PATTERN) ? ObjectRecords.createVirtualObjectRecord(key, "org:openmdx:base:Provider") :
null;
} catch (ResourceException exception) {
throw new CacheLoaderException(exception);
}
}
/*
* (non-Javadoc)
*
* @see javax.cache.integration.CacheLoader#loadAll(java.lang.Iterable)
*/
@Override
public Map loadAll(Iterable keys)
throws CacheLoaderException {
final Map result = new HashMap<>();
for (Path key : keys) {
final ObjectRecord object = load(key);
if (object != null) {
result.put(key, object);
}
}
return result;
}
}