Decouple config and netconf subsystems.

[controller.git] / opendaylight / config / config-manager-facade-xml / src / main / java / org / opendaylight / controller / config / facade / xml / mapping / attributes / resolving / ArrayAttributeResolvingStrategy.java

diff --git a/opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/resolving/ArrayAttributeResolvingStrategy.java b/opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/resolving/ArrayAttributeResolvingStrategy.java
new file mode 100644 (file)
index 0000000..021e065
--- /dev/null
+++ b/opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/resolving/ArrayAttributeResolvingStrategy.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.config.facade.xml.mapping.attributes.resolving;
+
+import com.google.common.base.Optional;
+import java.lang.reflect.Array;
+import java.util.List;
+import javax.management.openmbean.ArrayType;
+import javax.management.openmbean.CompositeDataSupport;
+import javax.management.openmbean.CompositeType;
+import javax.management.openmbean.OpenDataException;
+import javax.management.openmbean.OpenType;
+import org.opendaylight.controller.config.facade.xml.util.Util;
+import org.opendaylight.controller.config.util.xml.DocumentedException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+final class ArrayAttributeResolvingStrategy extends AbstractAttributeResolvingStrategy<Object, ArrayType<?>> {
+
+    private final AttributeResolvingStrategy<?, ? extends OpenType<?>> innerTypeResolvingStrategy;
+
+    private static final Logger LOG = LoggerFactory.getLogger(ArrayAttributeResolvingStrategy.class);
+
+    public ArrayAttributeResolvingStrategy(AttributeResolvingStrategy<?, ? extends OpenType<?>> innerTypeResolved,
+            ArrayType<?> openType) {
+        super(openType);
+        this.innerTypeResolvingStrategy = innerTypeResolved;
+    }
+
+    @Override
+    public Optional<Object> parseAttribute(String attrName, Object value) throws DocumentedException {
+        if (value == null) {
+            return Optional.absent();
+        }
+
+        Util.checkType(value, List.class);
+        List<?> valueList = (List<?>) value;
+
+        Class<?> innerTypeClass = null;
+
+        if (innerTypeResolvingStrategy.getOpenType() instanceof CompositeType) {
+            innerTypeClass = CompositeDataSupport.class;
+        } else {
+            try {
+                innerTypeClass = Class.forName(getOpenType().getElementOpenType().getClassName());
+            } catch (ClassNotFoundException e) {
+                throw new IllegalStateException("Unable to locate class for "
+                        + getOpenType().getElementOpenType().getClassName(), e);
+            }
+        }
+
+        Object parsedArray = null;
+
+        if (getOpenType().isPrimitiveArray()) {
+            Class<?> primitiveType = getPrimitiveType(innerTypeClass);
+            parsedArray = Array.newInstance(primitiveType, valueList.size());
+        } else {
+            parsedArray = Array.newInstance(innerTypeClass, valueList.size());
+        }
+
+        int i = 0;
+        for (Object innerValue : valueList) {
+            Optional<?> parsedElement = innerTypeResolvingStrategy.parseAttribute(attrName + "_" + i, innerValue);
+            if (!parsedElement.isPresent()){
+                continue;
+            }
+            Array.set(parsedArray, i, parsedElement.get());
+            i++;
+        }
+
+        // Rebuild open type. Underlying composite types might have changed
+        if (innerTypeResolvingStrategy.getOpenType() instanceof CompositeType) {
+            try {
+                final ArrayType<?> openType = new ArrayType<Object>(getOpenType().getDimension(), innerTypeResolvingStrategy.getOpenType());
+                setOpenType(openType);
+            } catch (OpenDataException e) {
+                throw new IllegalStateException("An error occurred during restoration of array type " + this
+                        + " for attribute " + attrName + " from value " + value, e);
+            }
+        }
+
+        LOG.debug("Attribute {} : {} parsed to type {} as {}", attrName, value, getOpenType(),
+                toStringArray(parsedArray));
+
+        return Optional.of(parsedArray);
+    }
+
+    private static String toStringArray(Object array) {
+        StringBuilder build = new StringBuilder(array.toString());
+        build.append(" [");
+        for (int i = 0; i < Array.getLength(array); i++) {
+            build.append(Array.get(array, i).toString());
+            build.append(",");
+        }
+        build.append("]]");
+        return build.toString();
+    }
+
+    private static Class<?> getPrimitiveType(Class<?> innerTypeClass) {
+        try {
+            return (Class<?>) innerTypeClass.getField("TYPE").get(null);
+        } catch (Exception e) {
+            throw new IllegalStateException("Unable to determine primitive type to " + innerTypeClass);
+        }
+    }
+
+    @Override
+    public String toString() {
+        return "ResolvedArrayTypeAttributeType [innerTypeResolved=" + innerTypeResolvingStrategy + "]";
+    }
+}