AbstractSourceSet.java

package org.opensha2.eq.model;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.base.Strings.padEnd;

import static org.opensha2.data.Data.checkWeight;
import static org.opensha2.internal.TextUtils.validateName;

import org.opensha2.geo.Location;

import com.google.common.base.Predicate;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.Ordering;

/**
 * Skeletal {@code SourceSet} implementation.
 *
 * @author Peter Powers
 */
abstract class AbstractSourceSet<T extends Source> implements SourceSet<T> {

  private final String name;
  private final int id;
  private final double weight;
  private final GmmSet gmmSet;

  AbstractSourceSet(String name, int id, double weight, GmmSet gmmSet) {
    this.name = name;
    this.id = id;
    this.weight = weight;
    this.gmmSet = gmmSet;
  }

  @Override
  public int compareTo(SourceSet<T> other) {
    return Ordering.natural().compare(this.name(), other.name());
  }

  @Override
  public String name() {
    return name;
  }

  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append(" Id: ").append(padEnd(Integer.toString(id), 8, ' '));
    sb.append("Name: ").append(padEnd(name(), 38, ' '));
    sb.append("Size: ").append(padEnd(Integer.toString(size()), 8, ' '));
    sb.append("Weight: ").append(padEnd(Double.toString(weight), 12, ' '));
    return sb.toString();
  }

  @Override
  public int id() {
    return id;
  }

  @Override
  public double weight() {
    return weight;
  }

  @Override
  public GmmSet groundMotionModels() {
    return gmmSet;
  }

  @Override
  public Iterable<T> iterableForLocation(Location loc) {
    return iterableForLocation(loc, gmmSet.maxDistance());
  }

  @Override
  public Iterable<T> iterableForLocation(Location loc, double distance) {
    Predicate<T> filter = distanceFilter(loc, distance);
    return FluentIterable.from(this).filter(filter);
  }

  static abstract class Builder {

    boolean built = false;

    String name;
    Integer id;
    Double weight;
    GmmSet gmmSet;

    Builder name(String name) {
      this.name = validateName(name);
      return this;
    }

    Builder id(int id) {
      this.id = id;
      return this;
    }

    Builder weight(double weight) {
      this.weight = checkWeight(weight);
      return this;
    }

    Builder gmms(GmmSet gmmSet) {
      this.gmmSet = checkNotNull(gmmSet);
      return this;
    }

    void validateState(String buildId) {
      checkState(!built, "This %s instance has already been used", buildId);
      built = true;
      checkState(name != null, "%s name not set", buildId);
      checkState(id != null, "%s id not set", buildId);
      checkState(weight != null, "%s weight not set", buildId);
      checkState(gmmSet != null, "%s ground motion models not set", buildId);
    }

  }

}