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/**
 * Copyright (C) 2006-2014 phloc systems
 * http://www.phloc.com
 * office[at]phloc[dot]com
 *
 * 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.phloc.css.decl;

import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;

import com.phloc.commons.ValueEnforcer;
import com.phloc.commons.annotations.Nonempty;
import com.phloc.commons.hash.HashCodeGenerator;
import com.phloc.commons.string.ToStringGenerator;
import com.phloc.css.CSSSourceLocation;
import com.phloc.css.ICSSSourceLocationAware;
import com.phloc.css.ICSSWriterSettings;

/**
 * Represents an expression member URI
 * 
 * @author Philip Helger
 */
@NotThreadSafe
public class CSSExpressionMemberTermURI implements ICSSExpressionMember, ICSSSourceLocationAware
{
  private CSSURI m_aURI;

  public CSSExpressionMemberTermURI (@Nonnull @Nonempty final String sURIString)
  {
    this (new CSSURI (sURIString));
  }

  public CSSExpressionMemberTermURI (@Nonnull final CSSURI aURI)
  {
    setURI (aURI);
  }

  /**
   * @return The contained {@link CSSURI} object.
   */
  @Nonnull
  public CSSURI getURI ()
  {
    return m_aURI;
  }

  /**
   * @return A sanity shortcut for getURI().getURI()
   */
  @Nonnull
  @Nonempty
  public String getURIString ()
  {
    return m_aURI.getURI ();
  }

  /**
   * Set a new URI
   * 
   * @param aURI
   *        The new URI to set. May not be null.
   * @return this
   */
  @Nonnull
  public CSSExpressionMemberTermURI setURI (@Nonnull final CSSURI aURI)
  {
    m_aURI = ValueEnforcer.notNull (aURI, "URI");
    return this;
  }

  /**
   * Replace the URI string in the existing {@link CSSURI} object.
   * 
   * @param sURIString
   *        The new URI string to set. May neither be null nor
   *        empty.
   * @return this
   */
  @Nonnull
  public CSSExpressionMemberTermURI setURIString (@Nonnull @Nonempty final String sURIString)
  {
    m_aURI.setURI (sURIString);
    return this;
  }

  @Nonnull
  public CSSExpressionMemberTermURI getClone ()
  {
    return new CSSExpressionMemberTermURI (m_aURI);
  }

  @Nonnull
  @Nonempty
  public String getAsCSSString (@Nonnull final ICSSWriterSettings aSettings, @Nonnegative final int nIndentLevel)
  {
    return m_aURI.getAsCSSString (aSettings, nIndentLevel);
  }

  public void setSourceLocation (@Nullable final CSSSourceLocation aSourceLocation)
  {
    m_aURI.setSourceLocation (aSourceLocation);
  }

  @Nullable
  public CSSSourceLocation getSourceLocation ()
  {
    return m_aURI.getSourceLocation ();
  }

  @Override
  public boolean equals (final Object o)
  {
    if (o == this)
      return true;
    if (o == null || !getClass ().equals (o.getClass ()))
      return false;
    final CSSExpressionMemberTermURI rhs = (CSSExpressionMemberTermURI) o;
    return m_aURI.equals (rhs.m_aURI);
  }

  @Override
  public int hashCode ()
  {
    return new HashCodeGenerator (this).append (m_aURI).getHashCode ();
  }

  @Override
  public String toString ()
  {
    return new ToStringGenerator (null).append ("URI", m_aURI).toString ();
  }
}