package com.atlassian.plugins.rest.module;
   
   import com.google.common.base.Preconditions;
   import org.apache.commons.lang.StringUtils;
   
   import java.util.Set;
   
   public class RestApiContext
   {
      public static final String SLASH = "/";
  
      public final static String LATEST = SLASH + "latest";
  
      public final static String ANY_PATH_PATTERN = "/*";
  
      private final String restContext;
      private final String apiPath;
      private final ApiVersion version;
      private final Set<String> packages;
  
      public RestApiContext(String restContext, String apiContext, ApiVersion version, Set<String> packages)
      {
          this.restContext = prependSlash(Preconditions.checkNotNull(restContext));
          this.apiPath = prependSlash(Preconditions.checkNotNull(apiContext));
          this.version = Preconditions.checkNotNull(version);
          this.packages = Preconditions.checkNotNull(packages);
      }
  
      /**
       * @return the REST context, always starts with "/".
       */
      public String getRestContext()
      {
          return restContext;
      }
  
      /**
       * @return the API path, always starts with "/"
       */
      public String getApiPath()
      {
          return apiPath;
      }
  
      /**
       * @return the API version
       */
      public ApiVersion getVersion()
      {
          return version;
      }
  
      public String getPathToVersion()
      {
          return getPathToVersion(SLASH + version);
      }
  
      public String getPathToLatest()
      {
          return getPathToVersion(LATEST);
      }
  
      public String getPathToVersion(String version)
      {
          return restContext + apiPath + version;
      }
  
      private String prependSlash(String path)
      {
          return StringUtils.startsWith(path, SLASH) ? path : SLASH + path;
      }
  
      public Set<String> getPackages()
      {
          return packages;
      }
  }