// Summary:
// Generates the poem schema. Parses the syntax rules from the file
// and uses the repository objects to access the database and retrieve
// the schema by id.
//
// Parameters:
// schemaId:
// The id by which to find the poem schema.
// Returns:
// The string containing the generated poem.
public string GeneratePoem(int schemaId)
{
IPoemSyntaxRuleDocument doc = parser.Parse(config.SyntaxConfigFile);
PoemSchema schema = poemRepository.GetSchemaById(schemaId);
string generatedPoem = poemGenerator.GeneratePoem(schema, doc);
return(generatedPoem);
}
public void PoemSchemaGetLinesUnrecognizableSeparatorTest()
{
string separator = "?";
PoemSchema poemSchema = new PoemSchema();
string testSchema = String.Format("x--x-{0}-x--x{0}-x-", separator);
poemSchema.Value = testSchema;
string[] expectedLines = new string[] { "x--x-?-x--x?-x-" };
string[] actualLines = poemSchema.GetLines();
CollectionAssert.AreEqual(expectedLines, actualLines);
}
// Summary:
// Main method to generate a poem text by the poem schema and syntax rules.
//
// Parameters:
// schema:
// The schema object by which the poem should be constructed.
// document:
// The object which represents the syntax rules to build a poem.
// Returns:
// The string containing the generated poem text. The line
// breaks separated by '\n' character.
// Exceptions:
// System.ArgumentNullException:
// document is null.
public string GeneratePoem(PoemSchema schema, IPoemSyntaxRuleDocument document)
{
if (document == null)
{
throw new ArgumentNullException("document", "Argument cannot be null.");
}
List <string> poemLines = new List <string>();
foreach (string line in schema.GetLines())
{
string generatedLine = this.GeneratePoemLine(line, document);
poemLines.Add(generatedLine);
}
return(string.Join("\n", poemLines));
}
