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A general programming library in Java/Android. It's easy to learn and simple to use with concise and powerful APIs.

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/*
 * Copyright (C) 2017 HaiYang Li
 *
 * 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 com.landawn.abacus.type;

import java.io.IOException;
import java.io.Writer;

import com.landawn.abacus.exception.UncheckedIOException;
import com.landawn.abacus.parser.SerializationConfig;
import com.landawn.abacus.util.BufferedWriter;
import com.landawn.abacus.util.CharacterWriter;
import com.landawn.abacus.util.ClassUtil;
import com.landawn.abacus.util.N;
import com.landawn.abacus.util.Objectory;
import com.landawn.abacus.util.Tuple;
import com.landawn.abacus.util.Tuple.Tuple2;
import com.landawn.abacus.util.WD;

/**
 *
 * @author Haiyang Li
 * @param 
 * @param 
 * @since 0.9
 */
@SuppressWarnings("java:S2160")
public class Tuple2Type extends AbstractType> {

    private final String declaringName;

    @SuppressWarnings("rawtypes")
    private final Class> typeClass = (Class) Tuple2.class; //NOSONAR

    /** The type 1. */
    private final Type type1;

    /** The type 2. */
    private final Type type2;

    private final Type[] parameterTypes;

    Tuple2Type(String t1TypeName, String t2TypeName) {
        super(getTypeName(t1TypeName, t2TypeName, false));

        this.declaringName = getTypeName(t1TypeName, t2TypeName, true);
        this.type1 = TypeFactory.getType(t1TypeName);
        this.type2 = TypeFactory.getType(t2TypeName);
        this.parameterTypes = new Type[] { type1, type2 };
    }

    /**
     * 
     *
     * @return 
     */
    @Override
    public String declaringName() {
        return declaringName;
    }

    /**
     * 
     *
     * @return 
     */
    @Override
    public Class> clazz() {
        return typeClass;
    }

    /**
     * Gets the parameter types.
     *
     * @return
     */
    @Override
    public Type[] getParameterTypes() {
        return parameterTypes;
    }

    /**
     * Checks if is generic type.
     *
     * @return true, if is generic type
     */
    @Override
    public boolean isGenericType() {
        return true;
    }

    /**
     *
     * @param x
     * @return
     */
    @Override
    public String stringOf(Tuple2 x) {
        return (x == null) ? null : Utils.jsonParser.serialize(N.asArray(x._1, x._2), Utils.jsc);
    }

    /**
     *
     * @param str
     * @return
     */
    @SuppressWarnings("unchecked")
    @Override
    public Tuple2 valueOf(String str) {
        if (N.isNullOrEmpty(str)) {
            return null;
        }

        final Object[] a = Utils.jsonParser.deserialize(Object[].class, str, Utils.jdc);

        final T1 t1 = a[0] == null ? null : ((T1) (type1.clazz().isAssignableFrom(a[0].getClass()) ? a[0] : N.convert(a[0], type1)));
        final T2 t2 = a[1] == null ? null : ((T2) (type2.clazz().isAssignableFrom(a[1].getClass()) ? a[1] : N.convert(a[1], type2)));

        return Tuple.of(t1, t2);
    }

    /**
     *
     * @param writer
     * @param x
     * @throws IOException Signals that an I/O exception has occurred.
     */
    @Override
    public void write(Writer writer, Tuple2 x) throws IOException {
        if (x == null) {
            writer.write(NULL_CHAR_ARRAY);
        } else {
            boolean isBufferedWriter = writer instanceof BufferedWriter || writer instanceof java.io.BufferedWriter;
            final Writer bw = isBufferedWriter ? writer : Objectory.createBufferedWriter(writer);

            try {
                bw.write(WD._BRACKET_L);

                type1.write(bw, x._1);
                bw.write(ELEMENT_SEPARATOR_CHAR_ARRAY);
                type2.write(bw, x._2);

                bw.write(WD._BRACKET_R);

                if (!isBufferedWriter) {
                    bw.flush();
                }
            } catch (IOException e) {
                throw new UncheckedIOException(e);
            } finally {
                if (!isBufferedWriter) {
                    Objectory.recycle((BufferedWriter) bw);
                }
            }
        }
    }

    /**
     *
     * @param writer
     * @param x
     * @param config
     * @throws IOException Signals that an I/O exception has occurred.
     */
    @Override
    public void writeCharacter(CharacterWriter writer, Tuple2 x, SerializationConfig config) throws IOException {
        if (x == null) {
            writer.write(NULL_CHAR_ARRAY);
        } else {
            try {
                writer.write(WD._BRACKET_L);

                type1.writeCharacter(writer, x._1, config);
                writer.write(ELEMENT_SEPARATOR_CHAR_ARRAY);
                type2.writeCharacter(writer, x._2, config);

                writer.write(WD._BRACKET_R);

            } catch (IOException e) {
                throw new UncheckedIOException(e);
            }
        }
    }

    /**
     * Gets the type name.
     *
     * @param t1TypeName
     * @param t2TypeName
     * @param isDeclaringName
     * @return
     */
    protected static String getTypeName(String t1TypeName, String t2TypeName, boolean isDeclaringName) {
        if (isDeclaringName) {
            return ClassUtil.getSimpleClassName(Tuple2.class) + WD.LESS_THAN + TypeFactory.getType(t1TypeName).declaringName() + WD.COMMA_SPACE
                    + TypeFactory.getType(t2TypeName).declaringName() + WD.GREATER_THAN;
        } else {
            return ClassUtil.getCanonicalClassName(Tuple2.class) + WD.LESS_THAN + TypeFactory.getType(t1TypeName).name() + WD.COMMA_SPACE
                    + TypeFactory.getType(t2TypeName).name() + WD.GREATER_THAN;
        }
    }
}




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