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/*
 * Copyright (C) 2014-2024 Philip Helger (www.helger.com)
 * philip[at]helger[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.helger.commons.url;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

import com.helger.commons.ValueEnforcer;
import com.helger.commons.annotation.Nonempty;
import com.helger.commons.hashcode.HashCodeGenerator;
import com.helger.commons.string.ToStringGenerator;

/**
 * A simple implementation of the {@link IURLProtocol} interface.
 *
 * @author Philip Helger
 */
public class URLProtocol implements IURLProtocol
{
  private final String m_sProtocol;
  private final boolean m_bAllowsForQueryParameters;

  public URLProtocol (@Nonnull @Nonempty final String sProtocol, final boolean bAllowsForQueryParameters)
  {
    m_sProtocol = ValueEnforcer.notEmpty (sProtocol, "Protocol");
    m_bAllowsForQueryParameters = bAllowsForQueryParameters;
  }

  @Nonnull
  @Nonempty
  public String getProtocol ()
  {
    return m_sProtocol;
  }

  public boolean isUsedInURL (@Nullable final String sURL)
  {
    return sURL != null && sURL.startsWith (m_sProtocol);
  }

  @Nullable
  public String getWithProtocol (@Nullable final String sURL)
  {
    if (sURL == null)
      return null;
    return m_sProtocol + sURL;
  }

  @Nullable
  public String getWithProtocolIfNone (@Nullable final String sURL)
  {
    if (sURL == null || URLProtocolRegistry.getInstance ().hasKnownProtocol (sURL))
      return sURL;
    return m_sProtocol + sURL;
  }

  public boolean allowsForQueryParameters ()
  {
    return m_bAllowsForQueryParameters;
  }

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

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

  @Override
  public String toString ()
  {
    return new ToStringGenerator (this).append ("protocol", m_sProtocol).append ("queryParams", m_bAllowsForQueryParameters).getToString ();
  }
}