Class Get

  • All Implemented Interfaces:
    java.lang.Cloneable

    public class Get
    extends Task
    Gets a particular file from a URL source. Options include verbose reporting, timestamp based fetches and controlling actions on failures. NB: access through a firewall only works if the whole Java runtime is correctly configured.
    Since:
    Ant 1.1
    • Constructor Detail

      • Get

        public Get()
    • Method Detail

      • doGet

        @Deprecated
        public boolean doGet​(int logLevel,
                             Get.DownloadProgress progress)
                      throws java.io.IOException
        Deprecated.
        only gets the first configured resource
        make a get request, with the supplied progress and logging info. All the other config parameters are set at the task level, source, dest, ignoreErrors, etc.
        Parameters:
        logLevel - level to log at, see Project.log(String, int)
        progress - progress callback; null for no-callbacks
        Returns:
        true for a successful download, false otherwise. The return value is only relevant when ignoreErrors is true, as when false all failures raise BuildExceptions.
        Throws:
        java.io.IOException - for network trouble
        BuildException - for argument errors, or other trouble when ignoreErrors is false.
      • doGet

        public boolean doGet​(java.net.URL source,
                             java.io.File dest,
                             int logLevel,
                             Get.DownloadProgress progress)
                      throws java.io.IOException
        make a get request, with the supplied progress and logging info. All the other config parameters like ignoreErrors are set at the task level.
        Parameters:
        source - the URL to get
        dest - the target file
        logLevel - level to log at, see Project.log(String, int)
        progress - progress callback; null for no-callbacks
        Returns:
        true for a successful download, false otherwise. The return value is only relevant when ignoreErrors is true, as when false all failures raise BuildExceptions.
        Throws:
        java.io.IOException - for network trouble
        BuildException - for argument errors, or other trouble when ignoreErrors is false.
        Since:
        Ant 1.8.0
      • log

        public void log​(java.lang.String msg,
                        int msgLevel)
        Description copied from class: Task
        Logs a message with the given priority. This delegates the actual logging to the project.
        Overrides:
        log in class Task
        Parameters:
        msg - The message to be logged. Should not be null.
        msgLevel - The message priority at which this message is to be logged.
      • setSrc

        public void setSrc​(java.net.URL u)
        Set an URL to get.
        Parameters:
        u - URL for the file.
      • add

        public void add​(ResourceCollection rc)
        Adds URLs to get.
        Parameters:
        rc - ResourceCollection
        Since:
        Ant 1.8.0
      • setDest

        public void setDest​(java.io.File dest)
        Where to copy the source file.
        Parameters:
        dest - Path to file.
      • setVerbose

        public void setVerbose​(boolean v)
        If true, show verbose progress information.
        Parameters:
        v - if "true" then be verbose
      • setQuiet

        public void setQuiet​(boolean v)
        If true, set default log level to Project.MSG_ERR.
        Parameters:
        v - if "true" then be quiet
        Since:
        Ant 1.9.4
      • setIgnoreErrors

        public void setIgnoreErrors​(boolean v)
        If true, log errors but do not treat as fatal.
        Parameters:
        v - if "true" then don't report download errors up to ant
      • setUseTimestamp

        public void setUseTimestamp​(boolean v)
        If true, conditionally download a file based on the timestamp of the local copy.

        In this situation, the if-modified-since header is set so that the file is only fetched if it is newer than the local file (or there is no local file) This flag is only valid on HTTP connections, it is ignored in other cases. When the flag is set, the local copy of the downloaded file will also have its timestamp set to the remote file time.

        Note that remote files of date 1/1/1970 (GMT) are treated as 'no timestamp', and web servers often serve files with a timestamp in the future by replacing their timestamp with that of the current time. Also, inter-computer clock differences can cause no end of grief.

        Parameters:
        v - "true" to enable file time fetching
      • setUsername

        public void setUsername​(java.lang.String u)
        Username for basic auth.
        Parameters:
        u - username for authentication
      • setPassword

        public void setPassword​(java.lang.String p)
        password for the basic authentication.
        Parameters:
        p - password for authentication
      • setMaxTime

        public void setMaxTime​(long maxTime)
        The time in seconds the download is allowed to take before being terminated.
        Parameters:
        maxTime - long
        Since:
        Ant 1.8.0
      • setRetries

        public void setRetries​(int r)
        The number of attempts to make for opening the URI, defaults to 3.

        The name of the method is misleading as a value of 1 means "don't retry on error" and a value of 0 meant don't even try to reach the URI at all.

        Parameters:
        r - number of attempts to make
        Since:
        Ant 1.8.0
      • setSkipExisting

        public void setSkipExisting​(boolean s)
        Skip files that already exist locally.
        Parameters:
        s - "true" to skip existing destination files
        Since:
        Ant 1.8.0
      • setUserAgent

        public void setUserAgent​(java.lang.String userAgent)
        HTTP connections only - set the user-agent to be used when communicating with remote server. if null, then the value is considered unset and the behaviour falls back to the default of the http API.
        Parameters:
        userAgent - String
        Since:
        Ant 1.9.3
      • setHttpUseCaches

        public void setHttpUseCaches​(boolean httpUseCache)
        HTTP connections only - control caching on the HttpUrlConnection: httpConnection.setUseCaches(); if false, do not allow caching on the HttpUrlConnection.

        Defaults to true (allow caching, which is also the HttpUrlConnection default value.

        Parameters:
        httpUseCache - boolean
        Since:
        Ant 1.8.0
      • setTryGzipEncoding

        public void setTryGzipEncoding​(boolean b)
        Whether to transparently try to reduce bandwidth by telling the server ant would support gzip encoding.

        Setting this to true also means Ant will uncompress .tar.gz and similar files automatically.

        Parameters:
        b - boolean
        Since:
        Ant 1.9.5
      • addConfiguredHeader

        public void addConfiguredHeader​(Header header)
        Add a nested header
        Parameters:
        header - to be added
      • createMapper

        public Mapper createMapper()
                            throws BuildException
        Define the mapper to map source to destination files.
        Returns:
        a mapper to be configured.
        Throws:
        BuildException - if more than one mapper is defined.
        Since:
        Ant 1.8.0
      • add

        public void add​(FileNameMapper fileNameMapper)
        Add a nested filenamemapper.
        Parameters:
        fileNameMapper - the mapper to add.
        Since:
        Ant 1.8.0