GlobalParam.java

package org.tigris.juxy;

import org.tigris.juxy.util.ArgumentAssert;

import java.util.Iterator;
import java.util.Map;

/**
 * <p/>
 *
 * @author Pavel Sher
 */
public class GlobalParam {
  private final String qname;
  private final Object value;
  private final boolean hasPrefix;
  private final String prefix;
  private final String localName;

  public GlobalParam(String qname, Object value) {
    ArgumentAssert.notEmpty(qname, "The qname must not be empty");
    ArgumentAssert.notNull(value, "The value must not be null");

    this.qname = qname;
    this.value = value;
    int colonIdx = this.qname.indexOf(":");
    hasPrefix = colonIdx > 0;

    prefix = hasPrefix ? this.qname.substring(0, colonIdx) : "";
    localName = this.qname.substring(colonIdx + 1);
  }

  public String getLocalName() {
    return localName;
  }

  public String getNamePrefix() {
    return prefix;
  }

  public Object getValue() {
    return value;
  }

  public boolean hasPrefix() {
    return hasPrefix;
  }

  public String getTransformerQName(Map namespaces) {
    if (hasPrefix) {
      String nsURI = findNamespaceURI(namespaces);
      if (nsURI != null)
        return "{" + nsURI + "}" + localName;
    }

    return localName;
  }

  public boolean equals(Object o) {
    if (this == o) return true;
    if (!(o instanceof GlobalParam)) return false;

    final GlobalParam globalParam = (GlobalParam) o;

    if (!qname.equals(globalParam.qname)) return false;
    if (!value.equals(globalParam.value)) return false;

    return true;
  }

  public int hashCode() {
    int result;
    result = qname.hashCode();
    result = 29 * result + value.hashCode();
    return result;
  }

  private String findNamespaceURI(Map namespaces) {
    String nsURI = null;
    Iterator it = namespaces.entrySet().iterator();
    while (it.hasNext()) {
      Map.Entry e = (Map.Entry) it.next();
      String p = (String) e.getValue();
      if (prefix.equals(p)) {
        nsURI = (String) e.getKey();
      }
    }
    return nsURI;
  }
}