Marker Cache Templateloader Jar File
FreeMarker loads template 'files' through objects that implement this interface,thus the templates need not be real files, and can come from any kind of data source(like classpath, servlet context, database, etc). While FreeMarker provides a fewimplementations out-of-the-box, it's normal for embeddingframeworks to use their own implementations.To set the used by FreeMaker, use.Implementations of this interface should be thread-safe.Implementations should override Object.toString to show information about from where theloads the templates. For example, for a template loader that loads template from databasetable toString could return something like'MyDatabaseTemplateLoader(user='cms', table='mailtemplates')'. This string will be shown inexception messages, next to the template name.For those who has to dig deeper, note that the is actually stored insidethe of the, and is normally only accessed directlyby the, and templates are get via the API-s.
Finds the template in the backing storage and returns an object that identifies the storage location where thetemplate can be loaded from. See the return value for more information. Parameters: name - The name (template root directory relative path) of the template, already localized and normalized bythe.
It is completely up to the loader implementation tointerpret the name, however it should expect to receive hierarchical paths where path components areseparated by a slash (not backslash). Backslashes (or any other OS specific separator character) arenot considered as separators by FreeMarker, and thus they will not be replaced with slash beforepassing to this method, so it's up to the template loader to handle them (say, by throwing anexception that tells the user that the path (s)he has entered is invalid, as (s)he must use slash -typical mistake of Windows users). The passed names are always considered relative to someloader-defined root location (often referred as the 'template root directory'), and will never startwith a slash, nor will they contain a path component consisting of either a single or a double dot -these are all resolved by the template cache before passing the name to the loader.
As a side effect,paths that trivially reach outside template root directory, such as./my.ftl, will berejected by the template cache, so they never reach the template loader. Note again, that if the pathuses backslash as path separator instead of slash as (the template loader should not accept that), thenormalization will not properly happen, as FreeMarker (the cache) recognizes only the slashes asseparators.
Returns: An object representing the template source, which can be supplied in subsequent calls toand, when those are called on thesame. Null must be returned if the source for the template doesn't exist;don't throw exception then! The exact type of this object is up to theimplementation. As this object is possibly used as hash key in caches, and is surly compared with anothertemplate source for equality, it must have a proper Object.equals(Object) andObject.hashCode) implementation. Especially, template sources that refer to the samephysical source must be equivalent, otherwise template caching can become inefficient. This is onlyexpected from Object.equals(Object) when the compared template sources came from the sameinstance. Also, it must not influence the equality if the source is open orclosed.
Throws: java.io.IOException - When an error occurs that makes it impossible to find out if the template exists, or to access theexisting template. Don't throw exception if the template doesn't exist, instead return withnull then!. getLastModified long getLastModified(java.lang.Object templateSource). Returns the time of last modification of the specified template source.
Marker Cache Templateloader Jar Files
This method is called afterfindTemplateSource. Parameters: templateSource - an object representing a template source (the template file), obtained through a prior call to. This must be an object on whichwasn't applied yet. Returns: The time of last modification for the specified template source, or -1 if the time is not known. Thisvalue meant to be milliseconds since the epoch, but in fact FreeMarker doesn't care what it means, itonly cares if it changes, in which case the template needs to be reloaded (even if the value hasdecreased).1 is not special in that regard either; if you keep returning it, FreeMarker won'treload the template (as far as it's not evicted from the cache from some otherreason).
Note that Long.MINVALUE is reserved for internal use. getReader java.io.Reader getReader(java.lang.Object templateSource,java.lang.String encoding)throws java.io.IOException. Returns the character stream of a template represented by the specified template source. This method is possiblycalled for multiple times for the same template source object, and it must always return a Reader thatreads the template from its beginning. Before this method is called for the second time (or later), its callermust close the previously returned Reader, and it must not use it anymore.
That is, this method is notrequired to support multiple concurrent readers for the same source templateSource object.Typically, this method is called if the template is missing from the cache, or if after callingand it was determined that the cached copyof the template is stale. Then, if it turns out that the encoding parameter used doesn't match the actualtemplate content (based on the #ftl encoding=. Header), this method will be called for a second timewith the correct encoding parameter value.Unlike, this method must not tolerate if the template is not found, andmust throw IOException in that case. Parameters: templateSource - an object representing a template source, obtained through a prior call to.
This must be an object on whichwasn't applied yet. Encoding - the character encoding used to translate source bytes to characters. Some loaders may not have accessto the byte representation of the template stream, and instead directly obtain a character stream.These loaders should ignore the encoding parameter. Returns: A Reader representing the template character stream; not null.
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It's the responsibility ofthe caller (which is usually) to close it. The Reader is notrequired to work after the templateSource was closed. Throws: java.io.IOException - if an I/O error occurs while accessing the stream.
closeTemplateSource void closeTemplateSource(java.lang.Object templateSource)throws java.io.IOException.
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Getting some Debug logs. How do I suppress it or how do I resolve the issue.