pl.softech.eav.domain.dsl.AttributeDefinitionContext.java Source code

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Here is the source code for pl.softech.eav.domain.dsl.AttributeDefinitionContext.java

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/*
 * Copyright 2013 Sawomir led <slawomir.sledz@sof-tech.pl>.
 *
 * 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 pl.softech.eav.domain.dsl;

import java.util.Arrays;

import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;

/**
 * @author Sawomir led <slawomir.sledz@sof-tech.pl>
 * @since 1.0
 */
public class AttributeDefinitionContext implements Context {

    private final String identifier;

    private final Context[] childrens;

    AttributeDefinitionContext(Builder builder) {
        this.identifier = builder.identifier;
        this.childrens = builder.getContexts();
    }

    public String getIdentifier() {
        return identifier;
    }

    @Override
    public void accept(ContextVisitor visitor) {
        visitor.visitOnEnter(this);

        for (Context ctx : childrens) {
            ctx.accept(visitor);
        }

        visitor.visitOnLeave(this);
    }

    @Override
    public String toString() {
        ToStringBuilder sb = new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE);
        sb.append("identifier", identifier);
        sb.append("childrens", childrens);
        return sb.toString();
    }

    static class Builder implements NamePropertyContextAware<Builder> {

        private String identifier;

        private CategoryPropertyContext categoryPropertyContext;
        private DataTypePropertyContext dataTypePropertyContext;
        private NamePropertyContext namePropertyContext;

        public Builder withIdentifier(String identifier) {
            this.identifier = identifier;
            return this;
        }

        public Builder withCategoryPropertyContext(CategoryPropertyContext categoryPropertyContext) {
            this.categoryPropertyContext = categoryPropertyContext;
            return this;
        }

        public Builder withDataTypePropertyContext(DataTypePropertyContext dataTypePropertyContext) {
            this.dataTypePropertyContext = dataTypePropertyContext;
            return this;
        }

        @Override
        public Builder withNamePropertyContext(NamePropertyContext namePropertyContext) {
            this.namePropertyContext = namePropertyContext;
            return this;
        }

        private Context[] getContexts() {

            return Collections2
                    .filter(Arrays.asList(categoryPropertyContext, dataTypePropertyContext, namePropertyContext),
                            new Predicate<Context>() {
                                @Override
                                public boolean apply(Context input) {
                                    return input != null;
                                }
                            })
                    .toArray(new Context[0]);

        }
    }

}