Package org.apache.tools.ant.taskdefs.condition

## Class IsSigned

- java.lang.Object
- - org.apache.tools.ant.ProjectComponent
  - - org.apache.tools.ant.types.DataType
    - - org.apache.tools.ant.taskdefs.condition.IsSigned

- All Implemented Interfaces:
    `java.lang.Cloneable`, `Condition`

      public class IsSigned
      extends DataType
      implements Condition

  Checks whether a jarfile is signed: if the name of the signature is passed, the file is checked for presence of that particular signature; otherwise the file is checked for the existence of any signature.

- - ### Field Summary

    - ### Fields inherited from class org.apache.tools.ant.types.DataType

      `checked, ref`

    - ### Fields inherited from class org.apache.tools.ant.ProjectComponent

      `description, location, project`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `IsSigned()` |

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | `eval()` | Returns `true` if the file exists and is signed with the signature specified, or, if `name` wasn't specified, if the file contains a signature.
    `static boolean` | `isSigned​(java.io.File zipFile, java.lang.String name)` | Returns `true` if the file exists and is signed with the signature specified, or, if `name` wasn't specified, if the file contains a signature.
    `void` | `setFile​(java.io.File file)` | The jarfile that is to be tested for the presence of a signature.
    `void` | `setName​(java.lang.String name)` | The signature name to check jarfile for.

    - ### Methods inherited from class org.apache.tools.ant.types.DataType

      `checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, setRefid, tooManyAttributes, toString`

    - ### Methods inherited from class org.apache.tools.ant.ProjectComponent

      `getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject`

    - ### Methods inherited from class java.lang.Object

      `equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### IsSigned

          public IsSigned()

  - ### Method Detail

    - #### setFile

          public void setFile​(java.io.File file)

      The jarfile that is to be tested for the presence of a signature.
      Parameters:
        `file` - jarfile to be tested.

    - #### setName

          public void setName​(java.lang.String name)

      The signature name to check jarfile for.
      Parameters:
        `name` - signature to look for.

    - #### isSigned

          public static boolean isSigned​(java.io.File zipFile,
                                         java.lang.String name)
                                  throws java.io.IOException

      Returns `true` if the file exists and is signed with the signature specified, or, if `name` wasn't specified, if the file contains a signature.
      Parameters:
        `zipFile` - the zipfile to check
        `name` - the signature to check (may be killed)
      Returns:
        true if the file is signed.
      Throws:
        `java.io.IOException` - on error

    - #### eval

          public boolean eval()

      Returns `true` if the file exists and is signed with the signature specified, or, if `name` wasn't specified, if the file contains a signature.
      Specified by:
        `eval` in interface `Condition`
      Returns:
        true if the file is signed.