org.apache.olingo.commons.core.edm.EdmTermImpl.java Source code

Introduction

Here is the source code for org.apache.olingo.commons.core.edm.EdmTermImpl.java

Source

/*
 * 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.olingo.commons.core.edm;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang3.ClassUtils;
import org.apache.olingo.commons.api.edm.Edm;
import org.apache.olingo.commons.api.edm.EdmException;
import org.apache.olingo.commons.api.edm.EdmTerm;
import org.apache.olingo.commons.api.edm.EdmType;
import org.apache.olingo.commons.api.edm.FullQualifiedName;
import org.apache.olingo.commons.api.edm.geo.SRID;
import org.apache.olingo.commons.api.edm.provider.CsdlTerm;
import org.apache.olingo.commons.core.edm.primitivetype.EdmPrimitiveTypeFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class EdmTermImpl extends AbstractEdmNamed implements EdmTerm {

    private static final Logger LOG = LoggerFactory.getLogger(EdmTermImpl.class);
    private final CsdlTerm term;
    private final FullQualifiedName fqn;
    private final EdmTypeInfo typeInfo;
    private EdmType termType;
    private EdmTerm baseTerm;
    private List<Class<?>> appliesTo;

    public EdmTermImpl(final Edm edm, final String namespace, final CsdlTerm term) {
        super(edm, term.getName(), term);

        this.term = term;
        fqn = new FullQualifiedName(namespace, term.getName());
        typeInfo = new EdmTypeInfo.Builder().setEdm(edm).setTypeExpression(term.getType()).build();
    }

    @Override
    public FullQualifiedName getFullQualifiedName() {
        return fqn;
    }

    @Override
    public EdmType getType() {
        if (termType == null) {
            termType = typeInfo.isPrimitiveType()
                    ? EdmPrimitiveTypeFactory.getInstance(typeInfo.getPrimitiveTypeKind())
                    : typeInfo.isTypeDefinition() ? typeInfo.getTypeDefinition()
                            : typeInfo.isEnumType() ? typeInfo.getEnumType()
                                    : typeInfo.isComplexType() ? typeInfo.getComplexType() : null;
            if (termType == null) {
                throw new EdmException("Cannot find type with name: " + typeInfo.getFullQualifiedName());
            }
        }

        return termType;
    }

    @Override
    public EdmTerm getBaseTerm() {
        if (baseTerm == null && term.getBaseTerm() != null) {
            baseTerm = edm.getTerm(new FullQualifiedName(term.getBaseTerm()));
        }
        return baseTerm;
    }

    @Override
    public List<Class<?>> getAppliesTo() {
        if (appliesTo == null) {
            final List<Class<?>> appliesToLocal = new ArrayList<Class<?>>();
            for (String element : term.getAppliesTo()) {
                try {
                    appliesToLocal
                            .add(ClassUtils.getClass(EdmTerm.class.getPackage().getName() + ".Edm" + element));
                } catch (ClassNotFoundException e) {
                    LOG.error("Could not load Edm class for {}", element, e);
                }
            }

            appliesTo = appliesToLocal;
        }
        return appliesTo;
    }

    @Override
    public Boolean isNullable() {
        return term.isNullable();
    }

    @Override
    public Integer getMaxLength() {
        return term.getMaxLength();
    }

    @Override
    public Integer getPrecision() {
        return term.getPrecision();
    }

    @Override
    public Integer getScale() {
        return term.getScale();
    }

    @Override
    public SRID getSrid() {
        return term.getSrid();
    }

    @Override
    public String getDefaultValue() {
        return term.getDefaultValue();
    }

    @Override
    public TargetType getAnnotationsTargetType() {
        return TargetType.Term;
    }

    @Override
    public FullQualifiedName getAnnotationsTargetFQN() {
        return getFullQualifiedName();
    }

    @Override
    public String getAnnotationsTargetPath() {
        return null;
    }
}