diff options
Diffstat (limited to 'v3po/translate-utils')
2 files changed, 70 insertions, 1 deletions
diff --git a/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java new file mode 100644 index 000000000..58695cf8b --- /dev/null +++ b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/BindingBrokerReader.java @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * + * Licensed 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 io.fd.honeycomb.v3po.translate.util.read; + +import com.google.common.base.Optional; +import com.google.common.util.concurrent.CheckedFuture; +import io.fd.honeycomb.v3po.translate.read.ReadContext; +import io.fd.honeycomb.v3po.translate.read.ReadFailedException; +import io.fd.honeycomb.v3po.translate.read.Reader; +import javax.annotation.Nonnull; +import org.opendaylight.controller.md.sal.binding.api.DataBroker; +import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction; +import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType; +import org.opendaylight.yangtools.yang.binding.DataObject; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +/** + * Simple DataBroker backed reader allowing to delegate reads to different brokers + */ +public final class BindingBrokerReader<D extends DataObject> implements Reader<D> { + + private final InstanceIdentifier<D> instanceIdentifier; + private final DataBroker dataBroker; + private final LogicalDatastoreType datastoreType; + + public BindingBrokerReader(final Class<D> managedDataObjectType, final DataBroker dataBroker, + final LogicalDatastoreType datastoreType) { + this.dataBroker = dataBroker; + this.datastoreType = datastoreType; + this.instanceIdentifier = InstanceIdentifier.create(managedDataObjectType); + } + + @Nonnull + @Override + public Optional<? extends DataObject> read(@Nonnull final InstanceIdentifier<? extends DataObject> id, + @Nonnull final ReadContext ctx) throws ReadFailedException { + try (final ReadOnlyTransaction readOnlyTransaction = dataBroker.newReadOnlyTransaction()) { + final CheckedFuture<? extends Optional<? extends DataObject>, org.opendaylight.controller.md.sal.common.api.data.ReadFailedException> + read = readOnlyTransaction.read(datastoreType, id); + try { + return read.checkedGet(); + } catch (org.opendaylight.controller.md.sal.common.api.data.ReadFailedException e) { + throw new ReadFailedException(id, e); + } + } + } + + @Nonnull + @Override + public InstanceIdentifier<D> getManagedDataObjectType() { + return instanceIdentifier; + } +} diff --git a/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/NoopReaderCustomizer.java b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/NoopReaderCustomizer.java index 5ed033755..3b703da3f 100644 --- a/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/NoopReaderCustomizer.java +++ b/v3po/translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/util/read/NoopReaderCustomizer.java @@ -17,6 +17,7 @@ package io.fd.honeycomb.v3po.translate.util.read; import io.fd.honeycomb.v3po.translate.Context; +import io.fd.honeycomb.v3po.translate.read.ReadFailedException; import io.fd.honeycomb.v3po.translate.spi.read.RootReaderCustomizer; import org.opendaylight.yangtools.concepts.Builder; import org.opendaylight.yangtools.yang.binding.DataObject; @@ -26,7 +27,8 @@ public abstract class NoopReaderCustomizer<C extends DataObject, B extends Build RootReaderCustomizer<C, B> { @Override - public void readCurrentAttributes(InstanceIdentifier<C> id, final B builder, final Context context) { + public void readCurrentAttributes(InstanceIdentifier<C> id, final B builder, final Context context) throws + ReadFailedException { // Noop } } |