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// Portions Copyright [2018-2019] [Payara Foundation and/or its affiliates]

package org.glassfish.ejb.deployment.descriptor;

import com.sun.enterprise.util.LocalStringManagerImpl;
import org.glassfish.deployment.common.Descriptor;

/**
 * This descriptor represents a specification of a transactional behavior.
 *
 * @author Danny Coward
 */

public final class ContainerTransaction extends Descriptor {
    private String transactionAttribute;
    /** Transactions are not supported. */
    public static final String NOT_SUPPORTED = "NotSupported";
    /** Transactions need support. */
    public static final String SUPPORTS = "Supports";
    /** A transaction is required. */
    public static final String REQUIRED = "Required";
    /** A new transaction must be created. */
    public static final String REQUIRES_NEW = "RequiresNew";
    /** Transaction is mandatory.*/
    public static final String MANDATORY = "Mandatory";
    /** Never supply a transaction. */
    public static final String NEVER = "Never";
    private static final LocalStringManagerImpl localStrings =
	    new LocalStringManagerImpl(ContainerTransaction.class);

    /**
     * Copy constructor.
     */
    public ContainerTransaction(ContainerTransaction other) {
        if (other != null) {
            this.transactionAttribute = other.transactionAttribute;
            this.setDescription(other.getDescription());
        }
    }

    /**
     * Create a new transaction descriptor with the given attribute. Throws
     * an IllegalArgumentException if the attribute is not an allowed type.
     * The allowed types are enumeration ny this class.
     * @param transactionAttribute .
     * @param description .
     */
    public ContainerTransaction(String transactionAttribute,
				String description) {
	super("a Container Transaction", description);
	boolean isValidAttribute = (NOT_SUPPORTED.equals(transactionAttribute)
	    || SUPPORTS.equals(transactionAttribute)
		|| REQUIRED.equals(transactionAttribute)
        || REQUIRES_NEW.equals(transactionAttribute)
        || MANDATORY.equals(transactionAttribute)
        || NEVER.equals(transactionAttribute) );
        if (!isValidAttribute && isBoundsChecking()) {
            throw new IllegalArgumentException(localStrings.getLocalString(
                "enterprise.deployment.exceptionunknowncontainertxtype",
                "Unknown ContainerTransaction type: {0}",
                transactionAttribute));
        } else {
            this.transactionAttribute = transactionAttribute;
        }
    }

    /**
     * The transaction attribute that I specify.
     * @return the transaction attribute.
     */
    public String getTransactionAttribute() {
	return this.transactionAttribute;
    }

    /**
     * Equality iff the other object is another container transaction with the
     * same transaction attribute.
     * @return true if the objects are equal, false otherwise.
     */
    public boolean equals(Object other) {
        if (other instanceof ContainerTransaction) {
            ContainerTransaction otherContainerTransaction =
                    (ContainerTransaction) other;
            return otherContainerTransaction.getTransactionAttribute().equals(
                    this.getTransactionAttribute());
        }
        return false;
    }

    public int hashCode() {
        int result = 17;
        result = 37*result + getTransactionAttribute().hashCode();
        return result;
    }


    /**
     * Returns a formatted String representing my state.
     */
    public void print(StringBuilder toStringBuilder) {
        toStringBuilder.append("Container Transaction: ").append(this.getTransactionAttribute()).append("@").append(this.getDescription());
    }
}