swim.uri.UriPathSegment Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of swim-uri Show documentation

Uploads all artifacts belonging to configuration ':swim-uri:archives'

There is a newer version: 3.10.0

// Copyright 2015-2019 SWIM.AI inc.
//
// 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 swim.uri;

import swim.codec.Format;
import swim.codec.Output;

final class UriPathSegment extends UriPath {
  final String head;
  UriPath tail;
  String string;

  UriPathSegment(String head, UriPath tail) {
    if (head.isEmpty()) {
      throw new IllegalArgumentException();
    }
    this.head = head;
    this.tail = tail;
  }

  @Override
  public boolean isDefined() {
    return true;
  }

  @Override
  public boolean isAbsolute() {
    return false;
  }

  @Override
  public boolean isRelative() {
    return true;
  }

  @Override
  public boolean isEmpty() {
    return false;
  }

  @Override
  public String head() {
    return this.head;
  }

  @Override
  public UriPath tail() {
    return this.tail;
  }

  @Override
  protected void setTail(UriPath tail) {
    if (tail.isAbsolute()) {
      this.tail = tail;
    } else {
      this.tail = UriPath.slash(tail);
    }
  }

  @Override
  protected UriPath dealias() {
    return new UriPathSegment(this.head, this.tail);
  }

  @Override
  public UriPath prependedSegment(String segment) {
    return UriPath.segment(segment, UriPath.slash(this));
  }

  public UriPath merge(UriPath that) {
    if (that == null) {
      throw new NullPointerException();
    }
    return UriPath.merge(this, that);
  }

  @Override
  public void debug(Output output) {
    output = output.write("UriPath").write('.').write("parse").write('(').write('"')
        .display(this).write('"').write(')');
  }

  @Override
  public void display(Output output) {
    if (this.string != null) {
      output = output.write(this.string);
    } else {
      UriPath.display(this, output);
    }
  }

  @Override
  public String toString() {
    if (this.string == null) {
      this.string = Format.display(this);
    }
    return this.string;
  }
}